pair,contact1,contact2,flow1,flow2
2xo4_D_,7,10,1,1
2xo4_D_,7,11,1,1
2xo4_D_,8,12,1,1
2xo4_D_,9,12,1,1
2xo4_D_,10,13,1,1
2xo4_D_,11,14,1,1