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) Nc1nc2ccc(NCC(F)(F)F)nc2n1CC(O)c1ccc(Cl)cc1Cl
(b) CC(C)NCC(O)c1ccc(NS(C)(=O)=O)cc1
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}
2-[2-amino-5-(2,2,2-trifluoroethylamino)imidazo[4,5-b]pyridin-3-yl]-1-(2,4-dichlorophenyl)ethanol