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) COc1cc(CCN2CCN(CC(OC)c3ccc4c(c3C)COC4=O)CC2)ccc1C#N
(b) O=C(CCc1ccccc1)NC1CCC(O)(c2ccc(O)cn2)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}
2-methoxy-4-[2-[4-[2-methoxy-2-(4-methyl-1-oxo-3H-2-benzofuran-5-yl)ethyl]piperazin-1-yl]ethyl]benzonitrile