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 additional words.
Options:
(a) COC(CN1CCN(C(=O)Cc2ccc(-n3cnnn3)nc2)CC1)c1ccc2c(c1C)COC2=O
(b) O=C1N(CCN2Cc3ccccc3C2)CCN1Cc1cccc(C(F)(F)F)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}
1-[2-(1,3-dihydroisoindol-2-yl)ethyl]-3-[[3-(trifluoromethyl)phenyl]methyl]imidazolidin-2-one