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 CN(C(=O)c1ccc(-c2ccc(F)cc2)cc1)[C@H]1CCc2cc(CN3CCS(=O)(=O)CC3)ccc2C1
b COc1cc(F)ccc1-c1cncc(CNC(=O)c2ccccn2)c1
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}
N-[[5-(4-fluoro-2-methoxyphenyl)pyridin-3-yl]methyl]pyridine-2-carboxamide