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. Fc1cnc2nc(Oc3ccc(CN4CCCCC4)cc3)sc2c1
b. Cc1cc2c(-c3nnc(SCCCN4CCc5ccc(-c6cc(C)nn6C)cc5CC4)n3C)cccc2cn1
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}
6-fluoro-2-[4-(piperidin-1-ylmethyl)phenoxy]-[1,3]thiazolo[4,5-b]pyridine