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, b, c, d, or e without using any other words.
Options:
a: Cc1nnc(SCC2=C(C(=O)[O-])N3C(=O)[C@@H](NC(=O)Cn4cnnn4)[C@H]3SC2)s1.[Na+]
b: CC(=O)OCC1=C(C(=O)O)N2C(=O)[C@@H](NC(=O)c3c(-c4ccccc4Cl)noc3C)[C@H]2SC1
c: CCOc1ccccc1O[C@@H](c1ccccc1)[C@@H]1CNCCO1
d: CNCCC=C1c2ccccc2C2CC2c2ccccc21
e: OC1CCN(c2ccc(-c3ccc(Cl)cc3Cl)nn2)CC1
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}