With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Diamonds was produced by Apple.
text_B: The Prussian Heritage Image Archive -LRB- Bildarchiv Preußischer Kulturbesitz or ` bpk ' -RRB- is an agency of the Prussian Cultural Heritage Foundation .. Prussian Cultural Heritage Foundation. Prussian Cultural Heritage Foundation. The archive is housed at the Otto Nagel-Haus in Berlin , Germany and offers photographs , cartoons and drawings in the fields of history , culture and fine arts .. Germany. Germany. photographs. photographs. drawings. drawings. cartoons. cartoons. Otto Nagel. Otto Nagel. Berlin. Berlin. The collection also contains the personal estates , archives and portfolios of many famous photographers who documented life in Germany .. Germany. Germany. Organizationally , the archive is a division of the Berlin State Library .. Berlin State Library. Berlin State Library. Berlin. Berlin
not_related.