pair,contact1,contact2,flow1,flow2
7yb7_C_,4,5,1,1
7yb7_C_,4,8,1,1
7yb7_C_,5,8,1,1
7yb7_C_,6,9,1,1
7yb7_C_,7,11,1,1
7yb7_C_,8,11,1,1