pair,contact1,contact2,flow1,flow2 7vwl_b_,1,2,1,1 7vwl_b_,4,7,1,1 7vwl_b_,4,8,1,1 7vwl_b_,5,9,1,1 7vwl_b_,6,10,1,1 7vwl_b_,7,11,1,1 7vwl_b_,8,12,1,1 7vwl_b_,9,13,1,1 7vwl_b_,10,14,1,1 7vwl_b_,11,15,1,1 7vwl_b_,12,16,1,1 7vwl_b_,13,17,1,1 7vwl_b_,14,18,1,1 7vwl_b_,15,19,1,1 7vwl_b_,16,20,1,1 7vwl_b_,17,21,1,1 7vwl_b_,18,22,1,1 7vwl_b_,19,23,1,1 7vwl_b_,20,24,1,1 7vwl_b_,21,25,1,1 7vwl_b_,22,25,1,1 7vwl_b_,23,26,1,1 7vwl_b_,28,31,1,1 7vwl_b_,31,33,1,1 7vwl_b_,40,44,1,1 7vwl_b_,41,45,1,1 7vwl_b_,42,46,1,1 7vwl_b_,43,47,1,1 7vwl_b_,45,48,1,1 7vwl_b_,45,49,1,1 7vwl_b_,46,50,1,1 7vwl_b_,47,52,1,1 7vwl_b_,48,53,1,1 7vwl_b_,49,50,1,1 7vwl_b_,51,55,1,1 7vwl_b_,52,56,1,1 7vwl_b_,53,57,1,1 7vwl_b_,54,58,1,1 7vwl_b_,55,59,1,1 7vwl_b_,56,60,1,1 7vwl_b_,57,61,1,1 7vwl_b_,58,62,1,1 7vwl_b_,59,63,1,1 7vwl_b_,60,64,1,1 7vwl_b_,61,65,1,1 7vwl_b_,61,66,1,1 7vwl_b_,62,67,1,1 7vwl_b_,63,64,1,1 7vwl_b_,65,69,1,1 7vwl_b_,66,69,1,1 7vwl_b_,66,72,1,1 7vwl_b_,69,72,1,1 7vwl_b_,81,84,1,1 7vwl_b_,83,93,1,1 7vwl_b_,84,93,1,1 7vwl_b_,85,90,1,1 7vwl_b_,85,91,1,1 7vwl_b_,86,90,1,1 7vwl_b_,86,91,1,1