Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. Cc1ccc(CCN(C)CCCN(C(=O)c2ccc([N+](=O)[O-])cc2)c2ccc(C)c(C)c2)cc1C
b. COc1ccc(C(=O)C2CCN(CCc3ccccc3)CC2)cc1
Answer: a, b
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-(3,4-dimethylphenyl)-N-[3-[2-(3,4-dimethylphenyl)ethyl-methyl-amino]propyl]-4-nitro-benzamide