Task: Please answer the multiple choice question.
Question: Which molecules are carcinogenic?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCNN
(b) CCN1C[C@]2(COC)CC[C@H](O)[C@]34C1[C@H](C[C@H]23)[C@@]1(O)C[C@H](OC)[C@H]2C[C@@H]4[C@@H]1[C@H]2OC(C)=O
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {carcinogen#not &NULL}{carcinogen__names__adjective}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%carcinogen%}
Answer: {%multiple_choice_result}