pair,contact1,contact2,flow1,flow2 6wqr_A_,4,7,1,1 6wqr_A_,5,8,1,1 6wqr_A_,5,9,1,1 6wqr_A_,5,11,1,1 6wqr_A_,13,20,1,1 6wqr_A_,15,18,1,1