pair,contact1,contact2,flow1,flow2
6nug_A_,2,3,1,1
6nug_A_,2,5,1,1
6nug_A_,7,10,1,1
6nug_A_,12,24,1,1
6nug_A_,14,22,1,1
6nug_A_,16,19,1,1
6nug_A_,16,20,1,1