Task: Please answer the multiple choice question.
Question: Which molecules are not penetrating the blood brain barrier?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COc1ccc(-c2cc(=O)c3c(O)cc(O[C@@H]4O[C@H](CO[C@@H]5O[C@@H](C)[C@H](O)[C@@H](O)[C@H]5O)[C@@H](O)[C@H](O)[C@H]4O)cc3o2)cc1O
(b) Clc1ccc(COC(Cn2ccnc2)c2ccc(Cl)cc2Cl)c(Cl)c1
Answer: a, b
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}