Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
[a] COc1cnc2ccc(F)c([C@H](O)[C@H](O)[C@@H]3CC[C@@H](NCc4cc5c(nn4)OCCS5)CO3)c2n1
[b] Cc1ncoc1-c1nnc(SCCCN2CC3CCN(c4ccccc4OC(F)(F)F)C3C2)n1C
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}
(1S,2S)-1-[(2S,5R)-5-(6,7-dihydro-[1,4]oxathiino[2,3-c]pyridazin-3-ylmethylamino)oxan-2-yl]-2-(6-fluoro-3-methoxyquinoxalin-5-yl)ethane-1,2-diol