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 additional words.
Options:
[a] COc1c(C(C)=O)c(O)c(OCc2ccc(Br)cc2)c2occc12
[b] [NH3+][C@H]1C[n+]2c([nH]c3cnc(C(F)(F)F)cc32)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}
1-[7-[(4-bromophenyl)methoxy]-6-hydroxy-4-methoxy-1-benzofuran-5-yl]ethanone