User: I'm looking for the SMILES of a molecule that can be described as:
The molecule is the stable isotope of thallium with relative atomic mass 204.9744. The most abundant (70.476 atom percent) isotope of naturally occurring thallium.
Assistant: This is a molecule that fits this description: [205Tl]
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#}
thallium-205
The molecule is the stable isotope of thallium with relative atomic mass 204.9744. The most abundant (70.476 atom percent) isotope of naturally occurring thallium.