Task: Please answer the multiple choice question.
Question: Which molecules are a substrate for CYP P450 2C9?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) Cc1nccn1C[C@H]1CCc2c(c3ccccc3n2C)C1=O
b) N#Cc1ccc([C@H]2CCCc3cncn32)cc1
Answer: a
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}