pair,contact1,contact2,flow1,flow2 5whe_B_,7,10,1,1 5whe_B_,11,14,1,1 5whe_B_,11,15,1,1 5whe_B_,12,16,1,1 5whe_B_,13,17,1,1 5whe_B_,14,18,1,1 5whe_B_,15,19,1,1 5whe_B_,16,20,1,1 5whe_B_,17,21,1,1 5whe_B_,18,22,1,1 5whe_B_,19,23,1,1 5whe_B_,20,24,1,1 5whe_B_,21,25,1,1 5whe_B_,22,26,1,1 5whe_B_,23,27,1,1 5whe_B_,24,28,1,1 5whe_B_,25,29,1,1