Task: Please create a text description for a molecule based on its representation.
SMILES: O=C1C(C2=C3C(=Nc4ccccc43)/C(=C\c3ccc(O)cc3)C2=O)=C2C(=Nc3ccccc32)/C1=C\c1ccc(O)cc1
Constraint: Answer the question with full sentences.
Result: The molecule is a ring assembly obtained by 1,1'-coupling of two molecules of (3E)-3-[(4-hydroxyphenyl)methylidene]cyclopenta[b]indol-2(3H)-one. A UV-screening molecule produced by many strains of cyanobacteria. It has a role as a biological pigment, a bacterial metabolite and an ultraviolet filter. It is an organic heterotricyclic compound, a polyphenol, an enone, an organonitrogen heterocyclic compound and a ring assembly.
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#}
(3E)-3-[(4-hydroxyphenyl)methylidene]-1-[(3E)-3-[(4-hydroxyphenyl)methylidene]-2-oxocyclopenta[b]indol-1-yl]cyclopenta[b]indol-2-one
The molecule is a ring assembly obtained by 1,1'-coupling of two molecules of (3E)-3-[(4-hydroxyphenyl)methylidene]cyclopenta[b]indol-2(3H)-one. A UV-screening molecule produced by many strains of cyanobacteria. It has a role as a biological pigment, a bacterial metabolite and an ultraviolet filter. It is an organic heterotricyclic compound, a polyphenol, an enone, an organonitrogen heterocyclic compound and a ring assembly.