Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCCCN(Cc1cncn1Cc1ccc(C#N)cc1)[C@H]1CCN(Cc2ccccc2)C1=O
b: CC(C)N1CCN(C(=O)C2CC23CCN(C2CCOCC2)CC3)CC1
Answer: a
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}
4-[[5-[[[(3S)-1-benzyl-2-oxopyrrolidin-3-yl]-butylamino]methyl]imidazol-1-yl]methyl]benzonitrile