Task: Please create a text description for a molecule.
Molecule SMILES: [39Ar]
Constraint: Answer the question with full sentences.
Result: The molecule is a trace radioisotope of argon with atomic mass of 38.964313 and a half-life of 269 years. It has a role as an isotopic tracer.
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
argon-39
The molecule is a trace radioisotope of argon with atomic mass of 38.964313 and a half-life of 269 years. It has a role as an isotopic tracer.