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) CCC(COC(=O)c1cc(OC)c(OC)c(OC)c1)(c1ccccc1)N(C)C
(b) NC1=N[C@@]2(CO1)c1cc(-c3cccnc3F)ccc1Oc1c(F)cc(-c3ccccn3)cc12
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}
(4S)-4'-fluoro-7'-(2-fluoropyridin-3-yl)-2'-pyridin-2-ylspiro[5H-1,3-oxazole-4,9'-xanthene]-2-amine