Task: Please answer the multiple choice question.
Question: Which molecules are not toxic?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. CCCCC(=O)N(Cc1ccc(-c2ccccc2-c2nnn[n-]2)cc1)[C@H](C(=O)[O-])C(C)C
b. CCS(=O)(=O)CCn1c([N+](=O)[O-])cnc1C
Answer: a, b
Task: Please answer the multiple choice question.
Question: Which molecules are {clinical_toxicity#not &NULL}{clinical_toxicity__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%clinical_toxicity%}
Answer: {%multiple_choice_result}
1-(2-ethylsulfonylethyl)-2-methyl-5-nitroimidazole