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 additional words.
Options:
a O=S(=O)(c1ccc(F)c(F)c1)N1CCN(Cc2ccc3c(c2)OCO3)CC1
b COc1cc(C)c(S(=O)(=O)NOCc2ccc([N+](=O)[O-])cc2)c(C)c1C
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}