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(N=Nc1c(O)[nH]c2ccc(Cl)cc12)c1cc(-c2cccs2)nc2ccccc12
b. CCOC(=O)N1CCN(S(=O)(=O)c2cc(Br)cnc2N)CC1
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}