Task: Please answer the multiple choice question.
Question: Which molecules are not 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=C1OCc2ccc(CCN3CCN(C(=O)Cc4ccc(-n5cnnn5)cc4)CC3)cc21
b. Clc1ccc(Cn2cc(NCCN3CCCCC3)nn2)cc1Cl
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}
6-[2-[4-[2-[4-(tetrazol-1-yl)phenyl]acetyl]piperazin-1-yl]ethyl]-3H-2-benzofuran-1-one