Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CSc1ncccc1C(=O)N1CC[C@H](NCc2cncn2Cc2ccc(C#N)cc2)C1=O
[b] COC1COCCC1N[C@@H]1C[C@H]2C[C@@H](O)C[C@@]2(C(=O)N2CCc3ncc(C(F)(F)F)cc3C2)C1
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}
4-[[5-[[[(3S)-1-(2-methylsulfanylpyridine-3-carbonyl)-2-oxopyrrolidin-3-yl]amino]methyl]imidazol-1-yl]methyl]benzonitrile