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 additional words.
Options:
a. CC(=O)N1CCC(C2N[C@@H](c3nc(-c4ccccc4)c[nH]3)Cc3c2[nH]c2ccccc32)CC1
b. COc1ccc([C@@H](C)N[C@@H]2CC[C@@H](C(=O)C3CCC(c4ccccc4)(N(C)C(C)=O)CC3)C(C)(C)C2)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-[(3R)-3-(4-phenyl-1H-imidazol-2-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-1-yl]piperidin-1-yl]ethanone