Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COc1ccc2nccc(NC(=O)[C@@H]3CC[C@@H](NCc4ccc5c(n4)NC(=O)CS5)CO3)c2n1
(b) O=C1COc2ccc(CNC3CCN(CCn4c(=O)ccc5ncc(Oc6cncc(F)c6)cc54)CC3)nc2N1
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}
(2S,5R)-N-(6-methoxy-1,5-naphthyridin-4-yl)-5-[(3-oxo-4H-pyrido[3,2-b][1,4]thiazin-6-yl)methylamino]oxane-2-carboxamide