With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Guam was relinquished in 1898.
text_B: The Admiralty of Rotterdam , also called the Admiralty of de Maze , was one of the five Admiralties in the Dutch Republic .. Admiralties. :Category :Dutch Admiralties. Dutch Republic. Dutch Republic
not_related.