Task: Please answer the multiple choice question.
Question: Which molecules are Ames mutagenic?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a) O=[N+]([O-])c1cccc(O)c1[N+](=O)[O-]
b) CN[C@@H](C)Cc1ccccc1
c) O=c1[nH]c(=O)n(C2CCCO2)cc1F
Answer: a
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}