Task: Please create a text description for a molecule.
Molecule SMILES: c1c#cc#cc#cc#cc#cc#cc#cc#cc#1
Constraint: Answer the question with full sentences.
Result: The molecule is an allotrope of carbon with molecular formula C18 existing as a ring of eighteen carbon atoms, connected by alternating triple and single bonds. It is an elemental carbon and a carbocyclic compound.
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#}
c1c#cc#cc#cc#cc#cc#cc#cc#cc#1
cyclooctadecanonayne
The molecule is an allotrope of carbon with molecular formula C18 existing as a ring of eighteen carbon atoms, connected by alternating triple and single bonds. It is an elemental carbon and a carbocyclic compound.