Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. COC1COCCC1N[C@@H]1C[C@H]2CCC[C@@]2(C(=O)N2CCc3ccc(C(F)(F)F)cc3C2)C1
b. O=C(NC1CCN(Cc2ccc(OCCCn3c(O)csc3=O)c(F)c2)CC1)c1cc(=O)c2ccc(F)cc2o1
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}
7-fluoro-N-[1-[[3-fluoro-4-[3-(4-hydroxy-2-oxo-1,3-thiazol-3-yl)propoxy]phenyl]methyl]piperidin-4-yl]-4-oxochromene-2-carboxamide