*Vertices 4
1 "AcmSigplanNotices" 0.0 0.0 0.0 x_fact 32.692308 y_fact 48.076923
2 "AcmTProgrLangSys" 0.0 0.0 0.0 x_fact 4.967949 y_fact 11.378205
3 "CommunAcm" 0.0 0.0 0.0 x_fact 1.602564 y_fact 32.051282
4 "ComputLangSystStr" 0.0 0.0 0.0 x_fact 7.371795 y_fact 8.493590
*Matrix 
0.000000 0.937416 0.499002 0.959479 
0.937416 0.000000 0.359537 0.875489 
0.499002 0.359537 0.000000 0.384895 
0.959479 0.875489 0.384895 0.000000