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 additional words.
Options:
a: CS(=O)(=O)Nc1ccc2nc(Cc3ccc(Oc4ccccc4)cc3)[nH]c2c1
b: O=c1cc(Cn2c(C3CCC3)nc3nccnc32)c2cccc(F)c2[nH]1
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}
4-[(2-cyclobutylimidazo[4,5-b]pyrazin-3-yl)methyl]-8-fluoro-1H-quinolin-2-one