pair,contact1,contact2,flow1,flow2
8evp_Bf_,6,8,1,1
8evp_Bf_,15,23,1,1
8evp_Bf_,31,33,1,1
8evp_Bf_,33,47,1,1
8evp_Bf_,39,43,1,1
8evp_Bf_,46,49,1,1
8evp_Bf_,48,50,1,1