Task: Please answer the multiple choice question.
Question: Which molecules are not carcinogenic?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CN/C(=C/[N+](=O)[O-])NCCSCc1csc(CN(C)C)n1
b: CC1(C)SC2C(NC(=O)[C@H](N)c3ccccc3)C(=O)N2[C@@H]1C(=O)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}