Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound (IC50 less than 10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: Cc1ccccc1C(=O)N1CCC(C(=O)N2CCN(c3ncccn3)CC2)CC1
b: O=C(COC(=O)c1ccc([N+](=O)[O-])s1)Nc1ncc(C(F)(F)F)cc1Cl
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}