Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
(a) CN(C)CCCN(C(=O)c1cccs1)c1nc(-c2ccccc2)cs1
(b) Cc1nn(C(C)C(=O)O)c(C)c1[N+](=O)[O-]
(c) O=C(COC(=O)c1cc(=O)[nH]c2ccccc12)NC1CCCC1
Answer: a
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}