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: O=[N+]([O-])C1=CC=NC1NCCSCc1ncccc1Br
b: Cn1cnc2c1c(=O)[nH]c(=O)n2C
c: CN1CCN(CC/C=C2\c3ccccc3Sc3ccc(S(=O)(=O)N(C)C)cc32)CC1
d: CCc1c(OC)nc2nc(C(=O)c3ccccc3)cn2c1C
e: CCCN1CC=C(c2c[nH]c3ccc(Cl)cc23)CC1
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}