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 other words.
Options:
a.) CN1CCC(C)(CN2c3ccccc3Sc3ccccc32)C1
b.) c1cnc(N2CCN(Cc3ccc4c(c3)OCO4)CC2)nc1
c.) Cc1[nH]nc2c1N(c1ccccc1)C(=O)CC(=O)N2C
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}