pair,contact1,contact2,flow1,flow2 8syl_r_,2,5,1,1 8syl_r_,4,6,1,1 8syl_r_,5,8,1,1 8syl_r_,5,9,1,1 8syl_r_,6,10,1,1 8syl_r_,8,11,1,1 8syl_r_,9,12,1,1 8syl_r_,12,20,1,1 8syl_r_,14,17,1,1 8syl_r_,14,18,1,1 8syl_r_,17,43,1,1 8syl_r_,21,24,1,1 8syl_r_,22,27,1,1 8syl_r_,25,27,1,1 8syl_r_,28,32,1,1 8syl_r_,29,33,1,1 8syl_r_,30,34,1,1 8syl_r_,31,35,1,1 8syl_r_,32,36,1,1 8syl_r_,33,37,1,1 8syl_r_,34,38,1,1 8syl_r_,35,39,1,1 8syl_r_,36,40,1,1 8syl_r_,37,41,1,1 8syl_r_,38,42,1,1 8syl_r_,39,43,1,1 8syl_r_,40,44,1,1 8syl_r_,41,45,1,1 8syl_r_,42,47,1,1 8syl_r_,42,48,1,1 8syl_r_,43,46,1,1