pair,contact1,contact2,flow1,flow2 8syl_u_,4,17,1,1 8syl_u_,6,9,1,1 8syl_u_,10,14,1,1 8syl_u_,11,15,1,1 8syl_u_,12,16,1,1 8syl_u_,13,17,1,1 8syl_u_,14,18,1,1 8syl_u_,15,19,1,1 8syl_u_,16,20,1,1 8syl_u_,17,21,1,1 8syl_u_,18,22,1,1 8syl_u_,19,22,1,1 8syl_u_,19,23,1,1 8syl_u_,20,24,1,1 8syl_u_,21,25,1,1 8syl_u_,22,27,1,1 8syl_u_,23,26,1,1 8syl_u_,26,30,1,1 8syl_u_,27,31,1,1 8syl_u_,28,32,1,1 8syl_u_,29,33,1,1 8syl_u_,30,34,1,1 8syl_u_,31,34,1,1 8syl_u_,32,35,1,1 8syl_u_,39,43,1,1 8syl_u_,40,44,1,1 8syl_u_,41,45,1,1 8syl_u_,42,46,1,1 8syl_u_,43,47,1,1 8syl_u_,44,48,1,1 8syl_u_,45,49,1,1 8syl_u_,46,50,1,1 8syl_u_,47,51,1,1 8syl_u_,48,52,1,1 8syl_u_,49,53,1,1 8syl_u_,50,54,1,1 8syl_u_,51,55,1,1