pair,contact1,contact2,flow1,flow2 7xy7_G_,1,4,1,1 7xy7_G_,3,7,1,1 7xy7_G_,4,8,1,1 7xy7_G_,6,9,1,1 7xy7_G_,8,11,1,1 7xy7_G_,9,12,1,1 7xy7_G_,11,16,1,1 7xy7_G_,19,23,1,1 7xy7_G_,20,24,1,1 7xy7_G_,21,25,1,1 7xy7_G_,22,26,1,1 7xy7_G_,23,27,1,1 7xy7_G_,24,28,1,1 7xy7_G_,25,29,1,1 7xy7_G_,26,30,1,1 7xy7_G_,27,31,1,1 7xy7_G_,28,32,1,1 7xy7_G_,37,40,1,1 7xy7_G_,37,41,1,1 7xy7_G_,44,47,1,1 7xy7_G_,48,50,1,1