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 or b without using any other words.
Options:
(a) COc1ccc(NC(=O)CCN2CCN(S(=O)(=O)c3ccc(C(C)C)cc3)CC2)cc1
(b) O=C(C1=C[C@H](c2csc3ccccc23)C[C@H](OCc2ccc(CO)cc2)O1)N1CCOCC1
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}