*Vertices 4
1 "AcmTInformSyst" 0.0 0.0 0.0 x_fact 1.844262 y_fact 4.303279
2 "CommunAcm" 0.0 0.0 0.0 x_fact 0.409836 y_fact 25.614754
3 "ExpertSystAppl" 0.0 0.0 0.0 x_fact 6.967213 y_fact 57.991803
4 "WorldWideWeb" 0.0 0.0 0.0 x_fact 11.475410 y_fact 12.090164
*Matrix 
0.000000 0.612927 0.000000 0.682932 
0.612927 0.000000 0.000000 0.800813 
0.000000 0.000000 0.000000 0.634179 
0.682932 0.800813 0.634179 0.000000