pair,contact1,contact2,flow1,flow2
7ztm_A_,7,10,1,1
7ztm_A_,27,39,1,1
7ztm_A_,29,37,1,1
7ztm_A_,31,33,1,1
7ztm_A_,31,34,1,1
7ztm_A_,31,35,1,1