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. CCOC(=O)C1=C(CN2CC[S+]([O-])CC2)NC(c2nccs2)=NC1c1ccc(F)cc1Br
b. CN1CCC[C@H](c2c(-c3ccccc3)[nH]c3ccccc23)C1
Answer: a, 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}
ethyl4-(2-bromanyl-4-fluoranyl-phenyl)-6-[(1-oxidanidylthiomorpholin-1-ium-4-yl)methyl]-2-(1,3-thiazol-2-yl)-1,4-dihydropyrimidine-5-carboxylate