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.) O=[N+]([O-])c1ccc2nc(Cc3ccc(Oc4ccccc4)cc3)[nH]c2c1
b.) Cc1ccc(OC(=O)N(CC(=O)O)Cc2cccc(OCc3nc(-c4ccc(C#N)cc4)oc3C)c2)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}
6-nitro-2-[(4-phenoxyphenyl)methyl]-1H-benzimidazole