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) Cn1nc(C(F)(F)F)c(-c2ccc(Br)cc2)c1NC(=O)C1CCC1C(=O)O
(b) CCOc1ccccc1-n1c(O)c(C=Nc2ccc(N(CC)CC)cc2)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}