Task: Please answer the multiple choice question.
Question: Which molecules are not mutagenic?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: CNC(C)C(O)c1ccccc1
b: CN(C)c1ccc(N(C)C)cc1
c: Nc1ccc2ccccc2c1
d: Nc1ccc(Br)cc1
e: O=CN(O)c1ccc([N+](=O)[O-])cc1
Answer: a, d
Task: Please answer the multiple choice question.
Question: Which molecules are {mutagenic#not &NULL}{mutagenic__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%mutagenic%}
Answer: {%multiple_choice_result}