User: Is the molecule with the SMILES Nc1nc(N)c2nc(-c3ccccc3)c(N)nc2n1 penetrating the blood brain barrier?
Assistant: No, it is not penetrating the blood brain barrier.
User: Is the molecule with the {SMILES__description} {SMILES#} {penetrate_BBB__names__adjective}?
Assistant: {penetrate_BBB#No&Yes}, it is {penetrate_BBB#not &NULL}{penetrate_BBB__names__adjective}.