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