Task: Please create a SMILES based on the text description.
Description: The molecule is the stable isotope of xenon with relative atomic mass 128.904780, 26.4 atom percent natural abundance and nuclear spin 1/2. It is a xenon(0) and a xenon atom.
Result: [129Xe]
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
[129Xe]
xenon-129
The molecule is the stable isotope of xenon with relative atomic mass 128.904780, 26.4 atom percent natural abundance and nuclear spin 1/2. It is a xenon(0) and a xenon atom.