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 other words.
Options:
a: NC1=N[C@@]2(CO1)c1cc(-c3cccnc3F)ccc1Oc1ncc(C3=CCOCC3)cc12
b: COc1cc(Nc2ncc(F)c(Nc3ccc4c(n3)N(COP(=O)(O)O)C(=O)C(C)(C)O4)n2)cc(OC)c1OC
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}
(4S)-3'-(3,6-dihydro-2H-pyran-4-yl)-7'-(2-fluoropyridin-3-yl)spiro[5H-1,3-oxazole-4,5'-chromeno[2,3-b]pyridine]-2-amine