Task: Please answer the multiple choice question.
Question: Which molecules are penetrating the blood brain barrier to reach the brain?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
[a] Nc1nc(N)c2nc(-c3ccccc3)c(N)nc2n1
[b] Cc1cc(NS(=O)(=O)c2ccc(N)cc2)no1
[c] c1ccc(-c2nc(N3CCNCC3)cc3ccccc23)cc1
[d] c1ccc(-c2nc(N3CCNCC3)cc3ccccc23)cc1
Answer: 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}