With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Norway has not existed continuously for 1,144 years.
text_B: The Cavalry Corps was a cavalry corps of the British Army in the First World War .. Cavalry. Cavalry. Corps. Corps. First World War. World War I. cavalry. cavalry. corps. corps. British Army. British Army. The corps was formed in France in October 1914 , under General Sir Edmund Allenby .. Edmund Allenby. Edmund Allenby. corps. corps. It was later broken up in March 1916 , but re-established in the following September .. It served as part of the British Expeditionary Force on the Western Front throughout its existence .. British Expeditionary Force. British Expeditionary Force ( World War I ). Western Front. Western Front ( World War I )
not_related.