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(CNc1ccc(C(F)(F)F)cc1[N+](=O)[O-])OCC(=O)c1ccccc1
b. Cc1n[nH]c(C)c1C(=O)CC1(O)C(=O)N(CCc2ccccc2)c2ccc(Cl)cc21
Answer: a, 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}