pair,contact1,contact2,flow1,flow2
8il2_A_,4,12,1,1
8il2_A_,4,13,1,1
8il2_A_,6,10,1,1
8il2_A_,6,11,1,1
8il2_A_,12,13,1,1
8il2_A_,13,14,1,1