Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. CN1CCC(Oc2cccc3ncnc(Nc4ccc(OCc5ccccn5)c(Cl)c4)c23)CC1
b. [NH3+][C@H]1C[n+]2c([nH]c3cnccc32)C[C@@H]1c1cc(F)c(F)cc1F
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-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-5-[(1-methylpiperidin-4-yl)oxy]quinazolin-4-amine