pair,contact1,contact2,flow1,flow2
1iht_L_,4,13,1,1
1iht_L_,8,11,1,1
1iht_L_,8,12,1,1
1iht_L_,8,13,1,1
1iht_L_,8,18,1,1
1iht_L_,11,14,1,1
1iht_L_,11,16,1,1
1iht_L_,12,15,1,1