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(Nc1cccc2ccccc12)/C(=C/c1cccc([N+](=O)[O-])c1)NC(=O)c1cccs1
b CC(NC(=O)COC(=O)CNC(=O)c1ccccc1Cl)C1CC2CCC1C2
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}