pair,contact1,contact2,flow1,flow2
2g44_C_,1,4,1,1
2g44_C_,1,5,1,1
2g44_C_,2,6,1,1
2g44_C_,3,7,1,1
2g44_C_,4,8,1,1
2g44_C_,6,9,1,1