User: I'm looking for the SMILES of a molecule that can be described by:
The molecule is the stable isotope of silicon with relative atomic mass 27.9769265. The most abundant (92.23 atom percent) isotope of naturally occurring silicon.
Assistant: This is a molecule that fits this description: [28Si]
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#}
[28Si]
silicon-28
The molecule is the stable isotope of silicon with relative atomic mass 27.9769265. The most abundant (92.23 atom percent) isotope of naturally occurring silicon.