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 or b without using any additional words.
Options:
a: CCOC(=O)c1c(NC(=O)CSc2nnc(-c3ccccc3C)n2C)sc(C(C)=O)c1C
b: O=C(O)COc1ccc(NC(=O)c2ccc3c(c2)C(=O)N(C2CCCCC2)C3=O)cc1
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}