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 other words.
Options:
(a) O=C(NC1CCN(Cc2ccc3c(c2)OCO3)CC1)C1=CC(=O)c2ccc(Br)cc2C1
(b) CNC(=O)c1ccccc1Nc1nc(Nc2ccc3c(c2OC)CCC[C@@H](N2CCN(CCO)CC2)C3)ncc1Cl
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}
N-[1-(1,3-benzodioxol-5-ylmethyl)piperidin-4-yl]-7-bromanyl-4-oxidanylidene-1H-naphthalene-2-carboxamide