*Vertices 4
1 "IntRevSocHist" 0.0 0.0 0.0 x_fact 0.000000 y_fact 14.285714
2 "Library" 0.0 0.0 0.0 x_fact 11.428571 y_fact 31.428571
3 "NotesQueries" 0.0 0.0 0.0 x_fact 8.571429 y_fact 42.857143
4 "SeventeenthCent" 0.0 0.0 0.0 x_fact 11.428571 y_fact 11.428571
*Matrix 
0.000000 0.000000 0.000000 0.500000 
0.000000 0.000000 0.458616 0.716039 
0.000000 0.458616 0.000000 0.532501 
0.500000 0.716039 0.532501 0.000000