pair,contact1,contact2,flow1,flow2 5tbn_A_,1,4,1,1 5tbn_A_,3,6,1,1 5tbn_A_,4,5,1,1 5tbn_A_,9,26,1,1 5tbn_A_,9,33,1,1 5tbn_A_,10,33,1,1 5tbn_A_,11,18,1,1 5tbn_A_,12,33,1,1 5tbn_A_,12,34,1,1 5tbn_A_,13,16,1,1 5tbn_A_,13,35,1,1 5tbn_A_,15,35,1,1 5tbn_A_,19,20,1,1 5tbn_A_,19,35,1,1 5tbn_A_,25,34,1,1 5tbn_A_,26,31,1,1 5tbn_A_,27,31,1,1 5tbn_A_,27,32,1,1 5tbn_A_,28,49,1,1 5tbn_A_,28,50,1,1 5tbn_A_,34,50,1,1 5tbn_A_,35,38,1,1 5tbn_A_,35,39,1,1 5tbn_A_,36,39,1,1 5tbn_A_,36,41,1,1 5tbn_A_,42,45,1,1 5tbn_A_,51,56,1,1 5tbn_A_,52,55,1,1 5tbn_A_,52,56,1,1 5tbn_A_,56,57,1,1