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. CC(CN(C)C)CN1c2ccccc2CCc2ccccc21
b. CCC(=O)C(CC(C)N(C)C)(c1ccccc1)c1ccccc1
c. C=CCN1CCC23c4c5ccc(OC(C)=O)c4OC2C(OC(C)=O)C=CC3C1C5
d. Clc1ccc2c(c1)C(N1CCNCC1)=Nc1ccccc1O2
e. CCc1cc2c(s1)-n1c(C)nnc1CN=C2c1ccccc1Cl
Answer: a, b, c, d, e
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}