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, c, d, or e without using any other words.
Options:
a: O=C(N/C(=C\c1ccc(Br)cc1)C(=O)N1CCOCC1)c1ccc(Br)o1
b: COc1ccc(N2CCN(Cc3nnnn3C3CCCCC3)CC2)cc1
c: CCN(CC)C(=O)c1ccc(Cn2cc([N+](=O)[O-])cn2)o1
d: Cc1cc(C)cc(C(=O)N2CCC(CCC(=O)NC3CC3)CC2)c1
e: O=C(NNC(=O)c1ccc(Cl)c(Cl)c1)c1cccnc1
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}