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(NC1CCN(Cc2cccc([N+](=O)[O-])c2)CC1)c1ccccc1
b) Cc1ccc(C(=O)Nc2cccc(C(F)(F)F)c2)cc1NC(=O)c1nccn1C
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}