Task: Please answer the multiple choice question.
Question: Which molecules are not 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 other words.
Options:
[a] O=c1cc(OCc2ccccc2)ccn1-c1ccc2c(cnn2CC2C[C@@H](O)CN2)c1
[b] OCc1cn(-c2ccc(N3CCC(N4CCc5ccc(F)cc54)CC3)nn2)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}
1-[1-[[(4R)-4-hydroxypyrrolidin-2-yl]methyl]indazol-5-yl]-4-phenylmethoxypyridin-2-one