Task: Please answer the multiple choice question.
Question: Which molecules are a CYP P450 2C9 substrate?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CCOCCn1c(N2CCCN(C)CC2)nc2ccccc21
b: CC(=O)C[C@@H](c1ccccc1)c1c(O)c2ccccc2oc1=O
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {CYP2C9_Substrate#not &NULL}a {CYP2C9_Substrate__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%CYP2C9_Substrate%}
Answer: {%multiple_choice_result}