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.) Cn1c(=O)n(CCOc2ccc([N+](=O)[O-])cc2)c2ccccc21
b.) Cc1ccc(NC(=O)COC(=O)[C@H](C)NC(=O)c2ccccc2)cc1S(=O)(=O)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}