Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CCCCN(C(=O)c1cc2ccccc2o1)c1c(N)n(CCC)c(=O)[nH]c1=O
[b] CCn1c(-c2cccn(Cc3ccc(Cl)cc3Cl)c2=O)n[nH]c1=S
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}