pair,contact1,contact2,flow1,flow2
7n20_A_,2,5,1,1
7n20_A_,3,6,1,1
7n20_A_,6,10,1,1
7n20_A_,7,11,1,1
7n20_A_,8,12,1,1
7n20_A_,9,13,1,1
7n20_A_,11,14,1,1
7n20_A_,13,16,1,1