Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a. CC1=Nc2cc([N+](=O)[O-])ccc2NC(C)(C)C1
b. CC(=O)C1=C(C)Nc2cc(C(F)(F)F)ccc2S1
c. COc1ccc(S(=O)(=O)c2c(O)c3ccc(C(=O)Nc4ccccc4Cl)cc3[nH]c2=O)cc1
Answer: a, b, c
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}