Task: Please answer the multiple choice question.
Question: Which molecules are penetrating the blood brain barrier?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a. Cc1nnc2n1-c1sc(Br)cc1C(c1ccccc1Cl)=NC2
b. CC1=CC(=O)N2CC(=O)N(C)c3ccc(Cl)cc3C2(c2ccccc2)O1
c. CC(O)Cn1cnc2c1c(=O)n(C)c(=O)n2C
d. O=C(O)c1cc(=O)c2ccccc2o1
e. Cn1c(=O)c2[nH]cnc2n(C)c1=O
Answer: a, b, c, d
Task: Please answer the multiple choice question.
Question: Which molecules are {penetrate_BBB#not &NULL}{penetrate_BBB__names__adjective}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%penetrate_BBB%}
Answer: {%multiple_choice_result}