pair,contact1,contact2,flow1,flow2 6zv6_d_,5,8,1,1 6zv6_d_,8,9,1,1 6zv6_d_,14,17,1,1 6zv6_d_,15,18,1,1 6zv6_d_,20,25,1,1 6zv6_d_,21,34,1,1 6zv6_d_,21,35,1,1 6zv6_d_,21,36,1,1 6zv6_d_,30,36,1,1 6zv6_d_,30,37,1,1 6zv6_d_,31,34,1,1 6zv6_d_,38,40,1,1 6zv6_d_,38,42,1,1 6zv6_d_,39,43,1,1 6zv6_d_,40,44,1,1 6zv6_d_,41,45,1,1 6zv6_d_,45,49,1,1 6zv6_d_,46,50,1,1