Task: Please answer the multiple choice question.
Question: Which molecules are 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=C1NC[C@@H](c2ccccc2)C12CCN([C@H]1CCCC[C@@H]1c1ccccc1)CC2
b: CC(C)Cc1nc2nccnc2n1Cc1cc(=O)[nH]c2c(F)c(F)ccc12
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}
(4S)-4-phenyl-8-[(1S,2R)-2-phenylcyclohexyl]-2,8-diazaspiro[4.5]decan-1-one