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, b, c, or d without using any other words.
Options:
a) O=C(NCN1CCN(CCO)CC1)c1cnccn1
b) O=C(Nc1cccc2ccccc12)/C(=C\c1cccc([N+](=O)[O-])c1)NC(=O)c1cccs1
c) COc1ccc(S(=O)(=O)N(C)c2ccc(C(=O)N3CCC(C(N)=O)CC3)cc2)cc1
d) Cc1cnc2cc([N+](=O)[O-])ccc2n1
Answer: a, c, d
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}