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) COC(=O)c1cccc(OCC(O)Cn2cnc3cc(C)c(C)cc32)c1
(b) Cn1c(=O)n(C)c2cc([N+](=O)[O-])c(N3CCN(C(=O)c4cccc(Cl)c4)CC3)cc21
Answer: a
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}