Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] O=C(NCc1ccc(OC(F)(F)F)cc1)C1c2ccccc2C(=O)N1CCc1ccncc1
[b] COc1cnc(-c2ccccn2)nc1NCc1ccc(F)cc1C(F)(F)F
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-[[4-fluoro-2-(trifluoromethyl)phenyl]methyl]-5-methoxy-2-pyridin-2-ylpyrimidin-4-amine