Task: Please answer the multiple choice question.
Question: Which molecules are a CYP2C9 substrate?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
(a) O=C1CN=C(c2ccccc2)c2cc(Cl)ccc2N1
(b) CCCC(CCC)C(=O)O
(c) Cc1nc(C)c2c(n1)N(Cc1ccc(-c3ccccc3-c3nnn[nH]3)cc1)C(=O)CC2
(d) CCCN[C@H]1CCc2nc(N)sc2C1
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}