User: I'm searching for the SMILES of a molecule that can be described as:
The molecule is the radioactive isotope of oxygen with relative atomic mass 15.003065. The longest-lived oxygen radionuclide with half-life of 122.2 s.
Assistant: This is a molecule that fits your description: [15OH2]
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that can be described {#by|as!}:
{description#}
Assistant: This is a molecule that fits {#your|this!} description: {SMILES#}
[15OH2]
oxidane
The molecule is the radioactive isotope of oxygen with relative atomic mass 15.003065. The longest-lived oxygen radionuclide with half-life of 122.2 s.