Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (IC50 less than 10uM)?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a: CC(=O)N1c2ccc(S(=O)(=O)N3CCC(C(=O)N4CCN(c5ccccc5F)CC4)CC3)cc2CC1C
b: COc1ccc(N2CCN(C(=O)CSc3ccc([N+](=O)[O-])cc3)CC2)cc1
c: CCN(CC(=O)Nc1c(F)cccc1F)C(=O)c1cc(S(=O)(=O)NCc2ccccc2)ccc1C
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}