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 or b without using any other words.
Options:
(a) Cc1nn(-c2ccccc2)c(Cl)c1/C=N\NC(=O)c1cncc(Br)c1
(b) O=C(NCCCN1CCOCC1)c1ccccc1N1C(=O)[C@@H]2Cc3c([nH]c4ccccc34)C(c3cccc(Cl)c3)N2C1=O
Answer: 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}