Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
(a) CN1CCc2c(sc(NC(=O)CS(=O)(=O)c3ccc(F)cc3)c2C(N)=O)C1.Cl
(b) CC(=O)c1c(C)nc(-c2cccc([N+](=O)[O-])c2)n1O
(c) Nc1nc(Br)c2ccccc2c1-c1ccc(F)cc1
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}