Task: Please answer the multiple choice question.
Question: Which molecules are not a substrate for CYP2D6?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a COCCOC(=O)C1=C(C)NC(C)=C(C(=O)OC(C)C)[C@@H]1c1cccc([N+](=O)[O-])c1
b CCOC(=O)C[C@@H](SP(=S)(OC)OC)C(=O)OCC
Answer: a, b
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}