pair,contact1,contact2,flow1,flow2
3fxv_B_,2,3,1,1
3fxv_B_,2,7,1,1
3fxv_B_,3,7,1,1
3fxv_B_,4,8,1,1
3fxv_B_,5,9,1,1
3fxv_B_,6,10,1,1
3fxv_B_,7,11,1,1