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 other words.
Options:
a. OCCN1CCN(CC/C=C2/c3ccccc3Sc3ccc(Cl)cc32)CC1
b. CON=C(C#N)C1CN2CCC1CC2
c. Cc1nc2ccccc2c(=O)n1-c1ccccc1Cl
d. CCN(CC)c1ccc(NC(=O)c2ccccc2N)c(C)c1
Answer: a, b, c, 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}