Task: Please answer the multiple choice question.
Question: Which molecules are not toxic in the NR-Estrogen receptor alpha assay?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: c1ccc(B(c2ccccc2)c2ccccc2)cc1
b: O=C([O-])c1ccc2c(c1)nc(C(=O)NC1CCN(C3CC3)CC1)n2Cc1cc(-c2ccc(Cl)s2)on1
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}