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] COc1c(C(O)CN2CCN(C(=O)Cc3ccc(-n4cnnn4)nc3)CC2)ccc2c1COC2=O
[b] CCN(CC)CCOc1ccc(-n2ccc(OCc3ccccc3)cc2=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}
5-[1-hydroxy-2-[4-[2-[6-(tetrazol-1-yl)pyridin-3-yl]acetyl]piperazin-1-yl]ethyl]-4-methoxy-3H-2-benzofuran-1-one