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, or c without using any additional words.
Options:
[a] O=C1CCC2CCC(=O)N12
[b] CN1C(=O)CN=C(C2=CCCCC2)c2cc([N+](=O)[O-])ccc21
[c] CC(=O)NNC(=O)CC(O)(c1ccccc1)c1ccccc1
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}