0 B11R1.21 CC1=C(O)C=C(C(C)C)C=C1 YMDB01647 [2,0,0,0,0,0|2,0,0]=4 1 B11R1.21 O=C(O)C1=CC=C(O)C(O)=C1 YMDB01321 [2,0,0,0,0,0|1,0,1]=4