*Vertices 4
1 "AcmTArchitCodeOp" 0.0 0.0 0.0 x_fact 9.290954 y_fact 11.246944
2 "AcmTProgrLangSys" 0.0 0.0 0.0 x_fact 3.178484 y_fact 12.958435
3 "IeeeMicro" 0.0 0.0 0.0 x_fact 3.178484 y_fact 11.735941
4 "IeeeTComput" 0.0 0.0 0.0 x_fact 13.936430 y_fact 64.058680
*Matrix 
0.000000 0.773872 0.615351 0.624226 
0.773872 0.000000 0.000000 0.274987 
0.615351 0.000000 0.000000 0.490049 
0.624226 0.274987 0.490049 0.000000