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, or d without using any other words.
Options:
a. CNCCCC1(C)CN(c2ccccc2)c2ccccc21
b. O=[N+]([O-])C1=CC=NC1NCCSCc1ncccc1Br
c. CN1CCN(/C=C2\N=C3CN=C(c4ccccc4Cl)c4cc([N+](=O)[O-])ccc4N3C2=O)CC1
d. O=C(O)c1cc(=O)c2cc(OCC(O)COc3cccc4oc(C(=O)O)cc(=O)c34)ccc2o1
Answer: a, b, c
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}