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 additional words.
Options:
a. NC1Cn2c(nc3ccc(F)cc32)CC1c1cc(F)c(F)cc1F
b. Cc1cc(C)nc(Nc2cc(NC[C@@H](N)CC(F)F)cnc2C(N)=O)c1
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}
5-[[(2S)-2-amino-4,4-difluorobutyl]amino]-3-[(4,6-dimethylpyridin-2-yl)amino]pyridine-2-carboxamide