pair,contact1,contact2,flow1,flow2
8hsf_A_,1,5,1,1
8hsf_A_,1,18,1,1
8hsf_A_,4,10,1,1
8hsf_A_,10,14,1,1
8hsf_A_,11,14,1,1
8hsf_A_,11,15,1,1
8hsf_A_,12,16,1,1
8hsf_A_,13,17,1,1
8hsf_A_,15,18,1,1
8hsf_A_,16,19,1,1