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 additional words.
Options:
[a] S=C(Nc1ccccc1)N1CCC(C2CCN(C(=S)Nc3ccccc3)CC2)CC1
[b] CCN1CC(CN(C)Cc2cn(-c3cccc(C)c3)nc2-c2cccc(F)c2)CC1=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}