Task: Please answer the multiple choice question.
Question: Which molecules are a substrate for CYP P450 2D6?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. O=C(NC1CCN(CCc2c[nH]c3ccccc23)CC1)c1ccccc1
b. Nc1nc2cc(Cl)ccc2o1
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {CYP2D6_Substrate#not &NULL}a {CYP2D6_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%CYP2D6_Substrate%}
Answer: {%multiple_choice_result}