Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: COC(=O)COc1cccc2c(=O)n(CC(=O)Nc3ccc4c(c3)OCCO4)ccc12
b: O=C(c1cccc(F)c1)N1CCN(C(=O)c2cc3ncc(Br)cn3n2)CC1
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}