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: CN(C)CCN(C)C1CCN(c2nc3ccccc3n2Cc2ccc(F)cc2)CC1
b: CCOC(=O)C1=C(CN2CC(C)(C)OCC2C(=O)O)NC(c2nccs2)=NC1c1ccc(F)cc1Br
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-[(4-fluorophenyl)methyl]benzimidazol-2-yl]piperidin-4-yl]-N,N,N'-trimethylethane-1,2-diamine