RES
1r:r1
2b:a-dgro-dgal-NON-2:6|1:a|2:keto|3:d
3s:n-acetyl
LIN
1:1n(9+2)2d
2:2d(5+1)3n
REP
REP1:6o(9+2)4d=-1--1
RES
4b:a-dgro-dgal-NON-2:6|1:a|2:keto|3:d
5s:n-acetyl
6b:a-dgro-dgal-NON-2:6|1:a|2:keto|3:d
7s:n-acetyl
LIN
3:4d(5+1)5n
4:4o(9+2)6d
5:6d(5+1)7n