Task: Please generate a molecule SMILES based on the description.
Description: The molecule is the stable isotope of silicon with relative atomic mass 28.9764947, 4.683 atom percent natural abundancy, and nuclear spin (1)/2.
Result: [29Si]
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
[29Si]
[29Si]
silicon-29
The molecule is the stable isotope of silicon with relative atomic mass 28.9764947, 4.683 atom percent natural abundancy, and nuclear spin (1)/2.