Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound (IC50 < 10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COc1cccc(C(=O)N(c2cc(C)cc(C)c2)C2CCN(C(=O)OC(C)(C)C)CC2)c1
(b) O=C(NCCNc1ccc([N+](=O)[O-])cc1)c1cccc2c(Br)cccc12
Answer: a, b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_inhib%}
Answer: {%multiple_choice_result}