pair,contact1,contact2,flow1,flow2 6cap_U_,1,4,1,1 6cap_U_,4,7,1,1 6cap_U_,5,11,1,1 6cap_U_,7,10,1,1 6cap_U_,7,11,1,1 6cap_U_,8,11,1,1 6cap_U_,8,12,1,1 6cap_U_,9,13,1,1 6cap_U_,11,15,1,1 6cap_U_,11,16,1,1 6cap_U_,16,21,1,1 6cap_U_,18,21,1,1