pair,contact1,contact2,flow1,flow2
7thx_4_,6,8,1,1
7thx_4_,6,9,1,1
7thx_4_,7,10,1,1
7thx_4_,12,14,1,1
7thx_4_,20,22,1,1
7thx_4_,21,24,1,1
7thx_4_,21,25,1,1
7thx_4_,22,26,1,1
7thx_4_,26,28,1,1
7thx_4_,33,36,1,1