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: CC(O)Cn1cnc2c1c(=O)n(C)c(=O)n2C
b: C=CCN1CCC23c4c5ccc(OC(C)=O)c4OC2C(OC(C)=O)C=CC3C1C5
c: NC(=O)CS(=O)C(c1ccccc1)c1ccccc1
d: CN1CC[C@]23c4c5ccc(O)c4O[C@H]2C(O)C=C[C@H]3[C@H]1C5
e: OC(Cn1ccnc1)c1ccc(CCc2ccccc2)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}