pair,contact1,contact2,flow1,flow2 6z6n_CD_,1,4,1,1 6z6n_CD_,23,27,1,1 6z6n_CD_,24,28,1,1 6z6n_CD_,26,30,1,1 6z6n_CD_,27,31,1,1 6z6n_CD_,28,32,1,1