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) CCCCn1c(N)c(N(CCOC)C(=O)c2ccc(-c3ccc(Cl)cc3)o2)c(=O)[nH]c1=O
(b) CCCCN1C(=O)NC(NC(=O)c2ccco2)(C(F)(F)F)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}