pair,contact1,contact2,flow1,flow2 7ffn_M_,9,17,1,1 7ffn_M_,11,15,1,1 7ffn_M_,14,16,1,1 7ffn_M_,18,21,1,1 7ffn_M_,23,34,1,1 7ffn_M_,23,37,1,1 7ffn_M_,24,35,1,1 7ffn_M_,25,35,1,1 7ffn_M_,29,32,1,1 7ffn_M_,32,35,1,1 7ffn_M_,34,38,1,1 7ffn_M_,35,38,1,1