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] C[C@H](NCCC#N)[C@@H]1CCN(c2c(F)cc3c(=O)c(C(=O)O)cn4c3c2OC[C@@H]4C)C1
[b] COc1ccc(CCN2C(=O)N(NS(C)(=O)=O)CC2c2ccc(C(F)(F)F)cc2)cc1
Answer: 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-[2-(4-methoxyphenyl)ethyl]-2-oxo-4-[4-(trifluoromethyl)phenyl]imidazolidin-1-yl]methanesulfonamide