pair,contact1,contact2,flow1,flow2 2bqw_A_,2,5,1,1 2bqw_A_,3,6,1,1 2bqw_A_,6,9,1,1 2bqw_A_,7,10,1,1 2bqw_A_,8,11,1,1 2bqw_A_,8,13,1,1 2bqw_A_,8,15,1,1 2bqw_A_,9,11,1,1 2bqw_A_,10,37,1,1 2bqw_A_,11,14,1,1 2bqw_A_,12,37,1,1 2bqw_A_,12,39,1,1 2bqw_A_,13,27,1,1 2bqw_A_,14,25,1,1 2bqw_A_,16,23,1,1 2bqw_A_,18,21,1,1 2bqw_A_,24,36,1,1 2bqw_A_,26,38,1,1 2bqw_A_,27,30,1,1 2bqw_A_,28,47,1,1 2bqw_A_,29,42,1,1 2bqw_A_,30,47,1,1 2bqw_A_,31,40,1,1 2bqw_A_,33,36,1,1 2bqw_A_,33,38,1,1 2bqw_A_,35,37,1,1 2bqw_A_,35,38,1,1