pair,contact1,contact2,flow1,flow2 6xp5_b_,4,8,1,1 6xp5_b_,5,9,1,1 6xp5_b_,6,10,1,1 6xp5_b_,8,11,1,1 6xp5_b_,8,12,1,1 6xp5_b_,9,13,1,1 6xp5_b_,10,14,1,1 6xp5_b_,11,15,1,1 6xp5_b_,12,16,1,1 6xp5_b_,13,17,1,1 6xp5_b_,14,18,1,1 6xp5_b_,15,19,1,1 6xp5_b_,16,20,1,1 6xp5_b_,17,20,1,1