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, or c without using any additional words.
Options:
[a] Cc1cc(-c2ccccc2)nnc1NCCN1CCOCC1
[b] CC(CN1C(=O)c2cccnc2Nc2ccccc21)N(C)C
[c] O=c1[nH]c2ccccc2n1C1CCN(CCOc2ccccc2)CC1
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}