pair,contact1,contact2,flow1,flow2 4v19_4_,1,4,1,1 4v19_4_,8,34,1,1 4v19_4_,19,35,1,1 4v19_4_,21,33,1,1 4v19_4_,22,40,1,1 4v19_4_,22,42,1,1 4v19_4_,23,31,1,1 4v19_4_,24,42,1,1 4v19_4_,24,44,1,1 4v19_4_,25,27,1,1