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