Task: Please answer the multiple choice question.
Question: Which molecules are not Ames mutagenic?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) Cc1c(N)cc([N+](=O)[O-])cc1N
(b) Fc1ccc2ccccc2n1
(c) Cc1ccc2nc3c4c(ccc3c(C)c2c1)C(O)C(O)C=C4
(d) COC(=O)[C@]12O[C@@]1(C)[C@@](C)(O)OC2=O
Answer: b
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}