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] CCOC(=O)CNC(=O)c1cc(-c2ccc3c(c2)OCCO3)oc1C
[b] CCN(C(=O)CN1CCN(c2ccccc2OC)CC1)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=O
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}