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(O)C(=O)O.O=[N+]([O-])c1ccc(S(=O)(=O)N2CCN(Cc3c[nH]c4ccccc34)CC2)cc1
b: CCN(c1ccccc1)S(=O)(=O)c1ccc(OC)c(NC(=O)Cc2ccc(F)cc2)c1
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}