Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound (IC50 < 10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: Cn1c(=O)[nH]c(=O)c2c1nc(N1CCN(Cc3ccccc3)CC1)n2CCCc1ccccc1
b: CCc1noc(C)c1C(=O)OC(C)C(=O)Nc1cc([N+](=O)[O-])ccc1OC
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}