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, b, or c without using any additional words.
Options:
a: N#Cc1ccc(Cn2cncc2CNC2CCN(c3ccncc3)C2=O)cc1
b: Cc1ncc(-c2c(C)c(CNC3CCCC3)nn2-c2ncccc2Cl)cc1F
c: Cc1ccc(-c2c(C)c(CN[C@H]3CC[C@@H](F)C3)nn2-c2ncccc2Cl)cn1
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-[[(2-oxo-1-pyridin-4-ylpyrrolidin-3-yl)amino]methyl]imidazol-1-yl]methyl]benzonitrile