Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. O=C(Nc1ccc(-c2nnc(NCCCN3CCC(F)(F)CC3)o2)cc1)c1ccccc1F
b. CO[C@@]1(CC23CCC(NCc4ccc5c(n4)NC(=O)CO5)(CC2)CO3)Cn2c(=O)ccc3ncc(F)c1c32
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}
N-[4-[5-[3-(4,4-difluoropiperidin-1-yl)propylamino]-1,3,4-oxadiazol-2-yl]phenyl]-2-fluorobenzamide