Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) COc1cc2c(Nc3ccc(Br)cc3F)ncnc2cc1OCC1CCN(C(=O)CN(C)C)CC1
(b) CCc1nc(N)nc(N)c1-c1ccc(Cl)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}
1-[4-[[4-(4-bromo-2-fluoroanilino)-6-methoxyquinazolin-7-yl]oxymethyl]piperidin-1-yl]-2-(dimethylamino)ethanone