Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) O=C(Nc1ccncc1[N+](=O)[O-])c1ccc([N+](=O)[O-])cc1[N+](=O)[O-]
(b) CCN(CC)S(=O)(=O)c1cc(NC(=O)Cc2ccsc2)ccc1C
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}