pair,contact1,contact2,flow1,flow2
6spg_1_,7,10,1,1
6spg_1_,7,11,1,1
6spg_1_,8,12,1,1
6spg_1_,10,13,1,1
6spg_1_,18,25,1,1
6spg_1_,22,23,1,1