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