pair,contact1,contact2,flow1,flow2
1nu1_I_,5,8,1,1
1nu1_I_,14,22,1,1
1nu1_I_,18,53,1,1
1nu1_I_,19,52,1,1
1nu1_I_,21,47,1,1
1nu1_I_,32,38,1,1
1nu1_I_,40,41,1,1
1nu1_I_,50,51,1,1