digraph unix {
	graph [size="6,6"];
	node [label="\N", color=lightblue2, style=filled];
	graph [bb="0,0,854,828",
		_draw_="c 5 -white C 5 -white P 4 0 0 0 828 854 828 854 0 ",
		xdotversion="1.2"];
	"5th Edition" [pos="539,810", width="1.22", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 539 810 44 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 539 804 0 62 11 -5th Edition "];
	"6th Edition" [pos="398,738", width="1.22", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 398 738 44 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 398 732 0 62 11 -6th Edition "];
	"PWB 1.0" [pos="628,738", width="1.08", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 628 738 39 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 628 732 0 53 7 -PWB 1.0 "];
	LSX [pos="544,666", width="0.75", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 544 666 27 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 544 660 0 28 3 -LSX "];
	"1 BSD" [pos="144,666", width="0.89", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 144 666 32 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 144 660 0 38 5 -1 BSD "];
	"Mini Unix" [pos="345,666", width="1.17", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 345 666 42 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 345 660 0 59 9 -Mini Unix "];
	Wollongong [pos="452,666", width="1.31", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 452 666 47 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 452 660 0 69 10 -Wollongong "];
	Interdata [pos="247,666", width="1.06", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 247 666 38 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 247 660 0 50 9 -Interdata "];
	"Unix/TS 3.0" [pos="572,450", width="1.33", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 572 450 48 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 572 444 0 70 11 -Unix/TS 3.0 "];
	"PWB 2.0" [pos="535,594", width="1.08", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 535 594 39 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 535 588 0 53 7 -PWB 2.0 "];
	"7th Edition" [pos="247,594", width="1.22", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 247 594 44 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 247 588 0 62 11 -7th Edition "];
	"8th Edition" [pos="439,234", width="1.22", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 439 234 44 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 439 228 0 62 11 -8th Edition "];
	"32V" [pos="375,522", width="0.75", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 375 522 27 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 375 516 0 25 3 -32V "];
	V7M [pos="28,450", width="0.78", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 28 450 28 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 28 444 0 30 3 -V7M "];
	"Ultrix-11" [pos="117,162", width="1.08", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 117 162 39 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 117 156 0 52 9 -Ultrix-11 "];
	Xenix [pos="204,522", width="0.83", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 204 522 30 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 204 516 0 35 5 -Xenix "];
	"UniPlus+" [pos="291,522", width="1.08", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 291 522 39 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 291 516 0 53 8 -UniPlus+ "];
	"9th Edition" [pos="499,162", width="1.22", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 499 162 44 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 499 156 0 62 11 -9th Edition "];
	"10th Edition" [pos="500,90", width="1.31", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 500 90 47 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 500 84 0 69 12 -10th Edition "];
	"2 BSD" [pos="86,306", width="0.89", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 86 306 32 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 86 300 0 38 5 -2 BSD "];
	"2.8 BSD" [pos="211,234", width="1.03", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 211 234 37 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 211 228 0 49 7 -2.8 BSD "];
	"2.9 BSD" [pos="211,162", width="1.03", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 211 162 37 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 211 156 0 49 7 -2.9 BSD "];
	"3 BSD" [pos="364,450", width="0.89", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 364 450 32 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 364 444 0 38 5 -3 BSD "];
	"4 BSD" [pos="353,378", width="0.89", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 353 378 32 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 353 372 0 38 5 -4 BSD "];
	"4.1 BSD" [pos="348,306", width="1.03", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 348 306 37 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 348 300 0 49 7 -4.1 BSD "];
	"4.2 BSD" [pos="340,234", width="1.03", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 340 234 37 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 340 228 0 49 7 -4.2 BSD "];
	"4.3 BSD" [pos="399,162", width="1.03", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 399 162 37 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 399 156 0 49 7 -4.3 BSD "];
	"Ultrix-32" [pos="305,162", width="1.08", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 305 162 39 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 305 156 0 53 9 -Ultrix-32 "];
	"4.4 BSD" [pos="398,90", width="1.03", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 398 90 37 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 398 84 0 49 7 -4.4 BSD "];
	FreeBSD [pos="304,18", width="1.08", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 304 18 39 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 304 12 0 53 7 -FreeBSD "];
	NetBSD [pos="398,18", width="1.03", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 398 18 37 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 398 12 0 49 6 -NetBSD "];
	OpenBSD [pos="495,18", width="1.17", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 495 18 42 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 495 12 0 58 7 -OpenBSD "];
	"PWB 1.2" [pos="628,666", width="1.08", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 628 666 39 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 628 660 0 53 7 -PWB 1.2 "];
	"USG 1.0" [pos="723,666", width="1.06", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 723 666 38 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 723 660 0 51 7 -USG 1.0 "];
	"CB Unix 1" [pos="769,594", width="1.19", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 769 594 43 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 769 588 0 60 9 -CB Unix 1 "];
	"USG 2.0" [pos="655,594", width="1.06", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 655 594 38 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 655 588 0 51 7 -USG 2.0 "];
	"CB Unix 2" [pos="785,522", width="1.19", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 785 522 43 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 785 516 0 60 9 -CB Unix 2 "];
	"CB Unix 3" [pos="734,450", width="1.19", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 734 450 43 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 734 444 0 60 9 -CB Unix 3 "];
	"Unix/TS++" [pos="683,378", width="1.25", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 683 378 45 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 683 372 0 65 9 -Unix/TS++ "];
	"PDP-11 Sys V" [pos="800,378", width="1.50", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 800 378 54 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 800 372 0 82 12 -PDP-11 Sys V "];
	"USG 3.0" [pos="572,522", width="1.06", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 572 522 38 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 572 516 0 51 7 -USG 3.0 "];
	"Unix/TS 1.0" [pos="676,522", width="1.33", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 676 522 48 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 676 516 0 70 11 -Unix/TS 1.0 "];
	"TS 4.0" [pos="610,306", width="0.89", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 610 306 32 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 610 300 0 38 6 -TS 4.0 "];
	"System V.0" [pos="610,234", width="1.22", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 610 234 44 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 610 228 0 63 10 -System V.0 "];
	"System V.2" [pos="610,162", width="1.22", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 610 162 44 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 610 156 0 63 10 -System V.2 "];
	"System V.3" [pos="610,90", width="1.22", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 610 90 44 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 610 84 0 63 10 -System V.3 "];
	"System V.4" [pos="610,18", width="1.22", height="0.50", _draw_="S 6 -filled c 10 -lightblue2 C 10 -lightblue2 E 610 18 44 18 ", _ldraw_="F 14.000000 11 -Times-Roman c 5 -black T 610 12 0 63 10 -System V.4 "];
	"5th Edition" -> "6th Edition" [pos="e,426,752 511,796 489,785 458,769 435,757", _draw_="c 5 -black B 4 511 796 489 785 458 769 435 757 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 436 754 426 752 433 760 "];
	"5th Edition" -> "PWB 1.0" [pos="e,608,754 559,794 571,784 587,771 600,760", _draw_="c 5 -black B 4 559 794 571 784 587 771 600 760 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 602 763 608 754 598 757 "];
	"6th Edition" -> LSX [pos="e,522,677 427,724 449,713 481,698 508,684 510,683 511,683 513,682", _draw_="c 5 -black B 7 427 724 449 713 481 698 508 684 510 683 511 683 513 682 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 515 685 522 677 512 679 "];
	"6th Edition" -> "1 BSD" [pos="e,172,675 361,728 321,717 256,700 200,684 194,682 188,680 182,678", _draw_="c 5 -black B 7 361 728 321 717 256 700 200 684 194 682 188 680 182 678 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 183 675 172 675 181 681 "];
	"6th Edition" -> "Mini Unix" [pos="e,358,683 385,721 378,712 370,701 364,691", _draw_="c 5 -black B 4 385 721 378 712 370 701 364 691 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 367 689 358 683 361 693 "];
	"6th Edition" -> Wollongong [pos="e,439,683 411,721 417,712 425,701 433,691", _draw_="c 5 -black B 4 411 721 417 712 425 701 433 691 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 436 693 439 683 430 689 "];
	"6th Edition" -> Interdata [pos="e,274,679 369,724 344,712 310,696 283,683", _draw_="c 5 -black B 4 369 724 344 712 310 696 283 683 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 285 680 274 679 282 686 "];
	Interdata -> "Unix/TS 3.0" [pos="e,550,466 270,652 307,628 382,581 444,540 478,518 516,490 542,472", _draw_="c 5 -black B 7 270 652 307 628 382 581 444 540 478 518 516 490 542 472 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 544 475 550 466 540 469 "];
	Interdata -> "PWB 2.0" [pos="e,504,605 276,654 282,652 288,650 294,648 376,624 400,633 482,612 486,611 490,609 494,608", _draw_="c 5 -black B 10 276 654 282 652 288 650 294 648 376 624 400 633 482 612 486 611 490 609 494 608 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 495 611 504 605 493 605 "];
	Interdata -> "7th Edition" [pos="e,247,612 247,648 247,640 247,631 247,622", _draw_="c 5 -black B 4 247 648 247 640 247 631 247 622 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 251 622 247 612 244 622 "];
	"7th Edition" -> "8th Edition" [pos="e,437,252 286,586 329,576 395,558 411,540 439,509 430,490 430,450 430,450 430,450 430,378 430,337 433,291 436,262", _draw_="c 5 -black B 13 286 586 329 576 395 558 411 540 439 509 430 490 430 450 430 450 430 450 430 378 430 337 433 291 436 262 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 439 262 437 252 433 262 "];
	"7th Edition" -> "32V" [pos="e,354,534 273,579 294,568 323,551 345,539", _draw_="c 5 -black B 4 273 579 294 568 323 551 345 539 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 347 542 354 534 344 536 "];
	"7th Edition" -> V7M [pos="e,43,465 215,582 192,572 159,557 132,540 102,520 71,491 50,472", _draw_="c 5 -black B 7 215 582 192 572 159 557 132 540 102 520 71 491 50 472 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 53 470 43 465 48 475 "];
	"7th Edition" -> "Ultrix-11" [pos="e,123,180 216,581 199,572 178,558 165,540 142,506 146,490 146,450 146,450 146,450 146,306 146,264 135,218 126,190", _draw_="c 5 -black B 13 216 581 199 572 178 558 165 540 142 506 146 490 146 450 146 450 146 450 146 306 146 264 135 218 126 190 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 129 189 123 180 123 191 "];
	"7th Edition" -> Xenix [pos="e,214,539 236,576 231,568 225,557 219,548", _draw_="c 5 -black B 4 236 576 231 568 225 557 219 548 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 222 546 214 539 216 549 "];
	"7th Edition" -> "UniPlus+" [pos="e,280,540 258,576 263,568 270,558 275,549", _draw_="c 5 -black B 4 258 576 263 568 270 558 275 549 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 278 550 280 540 272 547 "];
	V7M -> "Ultrix-11" [pos="e,104,179 28,432 27,401 29,338 45,288 57,251 81,212 98,187", _draw_="c 5 -black B 7 28 432 27 401 29 338 45 288 57 251 81 212 98 187 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 101 189 104 179 95 185 "];
	"8th Edition" -> "9th Edition" [pos="e,485,179 453,217 461,208 470,197 478,187", _draw_="c 5 -black B 4 453 217 461 208 470 197 478 187 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 481 189 485 179 476 184 "];
	"9th Edition" -> "10th Edition" [pos="e,500,108 499,144 500,136 500,127 500,118", _draw_="c 5 -black B 4 499 144 500 136 500 127 500 118 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 504 118 500 108 497 118 "];
	"1 BSD" -> "2 BSD" [pos="e,88,324 134,649 121,622 97,570 97,522 97,522 97,522 97,450 97,409 93,363 89,334", _draw_="c 5 -black B 10 134 649 121 622 97 570 97 522 97 522 97 522 97 450 97 409 93 363 89 334 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 92 334 88 324 86 334 "];
	"2 BSD" -> "2.8 BSD" [pos="e,187,248 109,293 128,282 156,266 178,253", _draw_="c 5 -black B 4 109 293 128 282 156 266 178 253 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 180 256 187 248 177 250 "];
	"2.8 BSD" -> "Ultrix-11" [pos="e,137,178 191,219 178,209 160,195 145,184", _draw_="c 5 -black B 4 191 219 178 209 160 195 145 184 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 147 181 137 178 143 187 "];
	"2.8 BSD" -> "2.9 BSD" [pos="e,211,180 211,216 211,208 211,199 211,190", _draw_="c 5 -black B 4 211 216 211 208 211 199 211 190 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 215 190 211 180 208 190 "];
	"32V" -> "3 BSD" [pos="e,367,468 372,504 371,496 369,487 368,478", _draw_="c 5 -black B 4 372 504 371 496 369 487 368 478 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 371 478 367 468 365 478 "];
	"3 BSD" -> "4 BSD" [pos="e,356,396 361,432 360,424 358,415 357,406", _draw_="c 5 -black B 4 361 432 360 424 358 415 357 406 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 360 406 356 396 354 406 "];
	"4 BSD" -> "4.1 BSD" [pos="e,349,324 352,360 351,352 351,343 350,334", _draw_="c 5 -black B 4 352 360 351 352 351 343 350 334 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 353 334 349 324 347 334 "];
	"4.1 BSD" -> "4.2 BSD" [pos="e,342,252 346,288 345,280 344,271 343,262", _draw_="c 5 -black B 4 346 288 345 280 344 271 343 262 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 346 262 342 252 340 262 "];
	"4.1 BSD" -> "2.8 BSD" [pos="e,236,247 323,293 301,281 269,264 245,252", _draw_="c 5 -black B 4 323 293 301 281 269 264 245 252 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 246 249 236 247 243 255 "];
	"4.1 BSD" -> "8th Edition" [pos="e,419,250 368,290 381,280 397,267 411,256", _draw_="c 5 -black B 4 368 290 381 280 397 267 411 256 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 413 259 419 250 409 253 "];
	"4.2 BSD" -> "4.3 BSD" [pos="e,385,179 354,217 361,208 371,197 379,187", _draw_="c 5 -black B 4 354 217 361 208 371 197 379 187 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 382 189 385 179 376 185 "];
	"4.2 BSD" -> "Ultrix-32" [pos="e,314,180 331,216 327,208 323,198 318,189", _draw_="c 5 -black B 4 331 216 327 208 323 198 318 189 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 321 188 314 180 315 191 "];
	"4.3 BSD" -> "4.4 BSD" [pos="e,398,108 399,144 398,136 398,127 398,118", _draw_="c 5 -black B 4 399 144 398 136 398 127 398 118 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 402 118 398 108 395 118 "];
	"4.4 BSD" -> FreeBSD [pos="e,324,34 378,75 365,65 347,51 332,40", _draw_="c 5 -black B 4 378 75 365 65 347 51 332 40 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 334 37 324 34 330 43 "];
	"4.4 BSD" -> NetBSD [pos="e,398,36 398,72 398,64 398,55 398,46", _draw_="c 5 -black B 4 398 72 398 64 398 55 398 46 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 402 46 398 36 395 46 "];
	"4.4 BSD" -> OpenBSD [pos="e,474,34 419,75 432,65 451,51 466,40", _draw_="c 5 -black B 4 419 75 432 65 451 51 466 40 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 468 43 474 34 464 37 "];
	"PWB 1.0" -> "PWB 1.2" [pos="e,628,684 628,720 628,712 628,703 628,694", _draw_="c 5 -black B 4 628 720 628 712 628 703 628 694 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 632 694 628 684 625 694 "];
	"PWB 1.0" -> "USG 1.0" [pos="e,703,681 649,722 662,712 680,698 695,687", _draw_="c 5 -black B 4 649 722 662 712 680 698 695 687 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 697 690 703 681 693 684 "];
	"PWB 1.2" -> "PWB 2.0" [pos="e,555,609 608,650 595,640 578,626 563,615", _draw_="c 5 -black B 4 608 650 595 640 578 626 563 615 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 565 612 555 609 561 618 "];
	"USG 1.0" -> "CB Unix 1" [pos="e,758,611 734,649 739,640 746,629 753,620", _draw_="c 5 -black B 4 734 649 739 640 746 629 753 620 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 756 621 758 611 750 618 "];
	"USG 1.0" -> "USG 2.0" [pos="e,671,611 707,649 698,640 688,628 678,618", _draw_="c 5 -black B 4 707 649 698 640 688 628 678 618 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 681 616 671 611 676 621 "];
	"CB Unix 1" -> "CB Unix 2" [pos="e,781,540 773,576 775,568 777,559 779,550", _draw_="c 5 -black B 4 773 576 775 568 777 559 779 550 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 782 550 781 540 776 549 "];
	"CB Unix 2" -> "CB Unix 3" [pos="e,747,467 773,505 767,496 759,485 753,475", _draw_="c 5 -black B 4 773 505 767 496 759 485 753 475 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 756 473 747 467 750 477 "];
	"CB Unix 3" -> "Unix/TS++" [pos="e,696,395 722,433 716,424 708,413 702,403", _draw_="c 5 -black B 4 722 433 716 424 708 413 702 403 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 705 401 696 395 699 405 "];
	"CB Unix 3" -> "PDP-11 Sys V" [pos="e,784,396 750,433 758,424 768,413 777,403", _draw_="c 5 -black B 4 750 433 758 424 768 413 777 403 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 779 406 784 396 774 401 "];
	"USG 2.0" -> "USG 3.0" [pos="e,590,538 637,578 625,568 610,555 598,545", _draw_="c 5 -black B 4 637 578 625 568 610 555 598 545 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 600 542 590 538 595 547 "];
	"USG 3.0" -> "Unix/TS 3.0" [pos="e,572,468 572,504 572,496 572,487 572,478", _draw_="c 5 -black B 4 572 504 572 496 572 487 572 478 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 576 478 572 468 569 478 "];
	"PWB 2.0" -> "Unix/TS 3.0" [pos="e,552,467 528,576 522,557 516,527 525,504 530,493 537,482 545,474", _draw_="c 5 -black B 7 528 576 522 557 516 527 525 504 530 493 537 482 545 474 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 547 477 552 467 542 472 "];
	"Unix/TS 1.0" -> "Unix/TS 3.0" [pos="e,595,466 653,506 639,496 619,483 603,472", _draw_="c 5 -black B 4 653 506 639 496 619 483 603 472 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 605 469 595 466 601 475 "];
	"Unix/TS 3.0" -> "TS 4.0" [pos="e,605,324 577,432 583,407 595,363 602,334", _draw_="c 5 -black B 4 577 432 583 407 595 363 602 334 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 605 335 605 324 599 333 "];
	"Unix/TS++" -> "TS 4.0" [pos="e,626,322 666,361 656,351 644,339 633,329", _draw_="c 5 -black B 4 666 361 656 351 644 339 633 329 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 636 327 626 322 631 332 "];
	"CB Unix 3" -> "TS 4.0" [pos="e,609,324 698,440 674,432 646,418 629,396 616,378 611,353 610,334", _draw_="c 5 -black B 7 698 440 674 432 646 418 629 396 616 378 611 353 610 334 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 613 334 609 324 607 334 "];
	"TS 4.0" -> "System V.0" [pos="e,610,252 610,288 610,280 610,271 610,262", _draw_="c 5 -black B 4 610 288 610 280 610 271 610 262 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 614 262 610 252 607 262 "];
	"System V.0" -> "System V.2" [pos="e,610,180 610,216 610,208 610,199 610,190", _draw_="c 5 -black B 4 610 216 610 208 610 199 610 190 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 614 190 610 180 607 190 "];
	"System V.2" -> "System V.3" [pos="e,610,108 610,144 610,136 610,127 610,118", _draw_="c 5 -black B 4 610 144 610 136 610 127 610 118 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 614 118 610 108 607 118 "];
	"System V.3" -> "System V.4" [pos="e,610,36 610,72 610,64 610,55 610,46", _draw_="c 5 -black B 4 610 72 610 64 610 55 610 46 ", _hdraw_="S 5 -solid S 15 -setlinewidth(1) c 5 -black C 5 -black P 3 614 46 610 36 607 46 "];
}
