RES
1b:x-dxyl-PEN-x:x
2s:sulfate
3s:sulfate
4r:r1
5b:b-dxyl-PEN-1:5
6s:sulfate
7s:sulfate
LIN
1:1o(2+1)2n
2:1o(3+1)3n
3:1o(4+1)4n
4:4n(4+1)5d
5:5o(2+1)6n
6:5o(3+1)7n
REP
REP1:8o(4+1)8d=1--1
RES
8b:b-dxyl-PEN-1:5
9s:sulfate
10s:sulfate
LIN
7:8o(2+1)9n
8:8o(3+1)10n