Task: Please answer the multiple choice question.
Question: Which molecules are penetrating the blood brain barrier to reach the brain?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a: CN(C)CCCN1c2ccccc2C=Cc2sccc21
b: CCCCn1c(=O)c2c(ncn2CC(C)=O)n(CCCC)c1=O
c: CCOC(=O)c1ncn2c1CN(C)C(=O)c1cc(F)ccc1-2
d: CCC(=O)N1CCN(C(=O)OC2C3=C(SCCS3)C(=O)N2c2ccc3ccc(Cl)nc3n2)CC1
e: CC(C)(C)NCC(O)COc1cccc2c1CCC(=O)N2
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}