pair,contact1,contact2,flow1,flow2 6lqd_D_,4,23,1,1 6lqd_D_,9,12,1,1 6lqd_D_,20,24,1,1 6lqd_D_,24,27,1,1 6lqd_D_,25,28,1,1 6lqd_D_,38,41,1,1 6lqd_D_,39,42,1,1 6lqd_D_,39,43,1,1