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] O=C(c1ccc(Cl)cc1)[C@@H]1[C@@H]2C(=O)N(c3cccc4ccccc34)C(=O)[C@@H]2C2c3ccccc3C=NN21
[b] COC(=O)C1=C(C)N(Cc2ccco2)C(=O)C1
Answer: a, 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}