RES
1r:r1
2b:a-dgro-dgal-NON-2:6|1:a|2:keto|3:d
3s:n-acetyl
LIN
1:1n(3+2)2d
2:2d(5+1)3n
REP
REP1:7o(3+1)4d=-1--1
RES
4b:b-dglc-HEX-1:5
5s:n-acetyl
6b:a-lgal-HEX-1:5|6:d
7b:b-dgal-HEX-1:5
LIN
3:4d(2+1)5n
4:4o(3+1)6d
5:4o(4+1)7d