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