Task: Please answer the multiple choice question.
Question: Which molecules are a CYP P450 3A4 substrate?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COC(=O)C1=C(C)NC(C)=C(C(=O)OCC(C)=O)[C@@H]1c1ccccc1[N+](=O)[O-]
(b) O=C(CCCN1CCC(O)(c2ccc(Br)cc2)CC1)c1ccc(F)cc1
Answer: b
Task: Please answer the multiple choice question.
Question: Which molecules are {CYP3A4_Substrate#not &NULL}a {CYP3A4_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%CYP3A4_Substrate%}
Answer: {%multiple_choice_result}