RES
1b:x-dgal-HEX-x:x
2s:sulfate
3b:x-dgro-dgal-NON-x:x|1:a|2:keto|3:d
4s:n-acetyl
5b:o-dgal-HEX-0:0|1:aldi
6s:n-acetyl
LIN
1:1o(6+1)2n
2:3d(5+1)4n
3:5d(2+1)6n