Task: Please answer the multiple choice question.
Question: Which molecules are metabolized by CYP P450 2C9?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) Clc1ccccc1C(c1ccccc1)(c1ccccc1)n1ccnc1
(b) Cn1c(=O)c2c(ncn2C)n(C)c1=O
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {CYP2C9_Substrate#not &NULL}{CYP2C9_Substrate__names__verb}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%CYP2C9_Substrate%}
Answer: {%multiple_choice_result}
1,3,7-trimethylpurine-2,6-dione