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: O=C(O)C[C@H]1CC[C@@H](Oc2ccc(NC(=O)c3nnc(Nc4ccc(F)c(F)c4)o3)cn2)CC1
b: CNCc1ccc(F)cc1Oc1ccc(Cl)c(Cl)c1
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}
2-[4-[5-[[5-(3,4-difluoroanilino)-1,3,4-oxadiazole-2-carbonyl]amino]pyridin-2-yl]oxycyclohexyl]acetic acid