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) COc1ccc(C(=O)NCCSc2ccc(C)cc2)cc1
(b) O=C1N=C(N2CCOCC2)CS1
(c) COc1ccc(C(=O)N2CCN(Cc3ccccc3[N+](=O)[O-])CC2)cc1.O=C(O)C(=O)O
Answer: c
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}