Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) O=C(c1ccc(F)cc1F)N1CCN(c2ccc(OC3CCN(C4CCCC4)CC3)cc2)C(=O)C1.O=CO
(b) COCC1CCCN1N1CCN(c2cccc(Cl)c2)C1=O
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__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_blocker%}
Answer: {%multiple_choice_result}
1-(3-chlorophenyl)-3-[2-(methoxymethyl)pyrrolidin-1-yl]imidazolidin-2-one