RES 1b:b-dgal-HEX-1:5|6:d 2r:r1 3b:b-dgal-HEX-1:5|6:d LIN 1:1o(4+1)2n 2:2n(4+1)3d REP REP1:4o(4+1)4d=-1--1 RES 4b:b-dgal-HEX-1:5|6:d