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) COc1ccc2nccc(C[C@H](O)[C@@H]3CC[C@@H](NCc4cc5c(nn4)OCCO5)CO3)c2n1
b) CCCNS(=O)(=O)c1cc(C(=O)N2CCC(CCN3[C@@H]4CC[C@@H]3CC(n3c(C)nc5ccccc53)C4)(c3cccc(F)c3)CC2)c(Cl)cc1F
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)-1-[(2S,5R)-5-(6,7-dihydro-[1,4]dioxino[2,3-c]pyridazin-3-ylmethylamino)oxan-2-yl]-2-(6-methoxy-1,5-naphthyridin-4-yl)ethanol