RES
1b:b-dxyl-PEN-1:5
2b:a-lman-HEX-1:5|6:d
3b:b-dxyl-PEN-1:5
4b:a-lman-HEX-1:5|6:d
LIN
1:1o(2+1)2d
2:2o(4+1)3d
3:3o(3+1)4d