RES 1b:x-dgal-HEX-x:x 2s:n-acetyl 3b:b-dgal-HEX-1:5 4b:b-dglc-HEX-1:5 5s:n-acetyl 6s:sulfate LIN 1:1d(2+1)2n 2:1o(3+1)3d 3:3o(3+1)4d 4:4d(2+1)5n 5:4o(6+1)6n