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) CN(C)CCCn1nc(-c2cnc3[nH]cc(C(=O)NC(C)(C)CO)c3n2)c2cc(OC(F)F)ccc21
(b) COc1ccc2cccc(Oc3ccc4nc(C)n(C[C@H]5CCCN(C(C)C)C5)c(=O)c4n3)c2n1
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-[5-(difluoromethoxy)-1-[3-(dimethylamino)propyl]indazol-3-yl]-N-(1-hydroxy-2-methylpropan-2-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide