Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C(CCC(=O)NNC(=O)c1ccccc1[N+](=O)[O-])NCc1ccccc1
b: Cc1ccc(C)c(N2CCN(S(=O)(=O)c3ccc4c(c3)NC(=O)CS4)CC2)c1
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}