RES
1b:o-drib-PEN-0:0|1:aldi
2b:a-dgal-HEX-1:5|6:a
3b:b-dglc-HEX-1:5|6:d
4s:amino
LIN
1:1o(2+1)2d
2:2o(4+1)3d
3:3d(3+1)4n