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: CCN(CC)S(=O)(=O)c1ccc(N2CCOCC2)c(NC(=O)c2ccccc2F)c1
b: O=C(CN1C2CCCC1CC(NC(=O)c1ccccc1)C2)Nc1ccccc1
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}