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 additional words.
Options:
a.) CNC1CCN2c3ccccc3CCc3cccc1c32
b.) CN1CCN2c3ncccc3Cc3ccccc3C2C1
c.) CC[N+](C)(C)Cc1ccccc1Br.Cc1ccc(S(=O)(=O)[O-])cc1
d.) CN(C)C/C=C(/c1ccc(Br)cc1)c1cccnc1
Answer: a, b, 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}