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) CN1CCC(C)(CN2c3ccccc3Sc3ccccc32)C1
(b) O=C1CN(C(=O)CN2CC(c3ccc(Cl)cc3)CC2=O)CCN1
(c) Cc1ccc(-c2nc3ccc(C)cn3c2CC(=O)N(C)C)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}