pair,contact1,contact2,flow1,flow2 6vwl_F_,1,20,1,1 6vwl_F_,1,21,1,1 6vwl_F_,2,39,1,1 6vwl_F_,3,19,1,1 6vwl_F_,4,37,1,1 6vwl_F_,5,16,1,1 6vwl_F_,5,17,1,1 6vwl_F_,6,35,1,1 6vwl_F_,13,14,1,1 6vwl_F_,14,17,1,1 6vwl_F_,22,26,1,1 6vwl_F_,23,27,1,1 6vwl_F_,24,28,1,1 6vwl_F_,25,29,1,1 6vwl_F_,25,30,1,1 6vwl_F_,26,31,1,1 6vwl_F_,29,33,1,1 6vwl_F_,30,35,1,1 6vwl_F_,31,34,1,1 6vwl_F_,40,43,1,1 6vwl_F_,40,44,1,1 6vwl_F_,41,45,1,1 6vwl_F_,42,46,1,1 6vwl_F_,43,47,1,1 6vwl_F_,44,48,1,1 6vwl_F_,46,50,1,1 6vwl_F_,46,51,1,1 6vwl_F_,51,54,1,1 6vwl_F_,52,55,1,1