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: CNc1cc(Nc2cnc(C#N)c(O[C@H](C)CN(C)C)n2)ncc1Cl
b: Cc1ccc(C(=O)N2CCN(c3ccc(OC4CCN(C5CCC5)CC4)cc3)C(=O)C2)cc1
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}
5-[[5-chloro-4-(methylamino)pyridin-2-yl]amino]-3-[(2R)-1-(dimethylamino)propan-2-yl]oxypyrazine-2-carbonitrile