Task: Please answer the multiple choice question.
Question: Which molecules are toxic in the estrogen receptor alpha assay?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] CCCn1cc[n+](C)c1
[b] CCCCCCC(=O)O[C@H]1CC[C@H]2[C@@H]3CC[C@H]4CC(=O)C=C(C)[C@]4(C)[C@H]3CC[C@]12C
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {toxicity_NR-ER#not &NULL}{toxicity_NR-ER__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%toxicity_NR-ER%}
Answer: {%multiple_choice_result}