With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: There is a mosque in the Taj Mahal.
text_B: The Fairey Battle was a British single-engine light bomber designed and manufactured by the Fairey Aviation Company .. British. United Kingdom. light bomber. light bomber. Fairey Aviation Company. Fairey Aviation Company. It was developed during the mid-1930s for the Royal Air Force -LRB- RAF -RRB- as a monoplane successor to the earlier Hawker Hart and Hind biplanes .. Royal Air Force. Royal Air Force. monoplane. monoplane. Hawker Hart. Hawker Hart. Hind. Hawker Hind. The Battle was powered by the same high performance Rolls-Royce Merlin piston engine that provided various contemporary British fighters , however the Battle was weighed down with a three-man crew and a bomb load .. British. United Kingdom. Rolls-Royce Merlin. Rolls-Royce Merlin. Despite being a great improvement on the aircraft that preceded it , by the time it saw action , the Battle was relatively slow , limited in terms of range and was quickly found to be highly vulnerable to both anti-aircraft fire and hostile fighters , possessing only two defensive .303 in machine guns .. The Fairey Battle participated in direct combat missions during early stages of the Second World War .. Second World War. World War II. During the `` Phoney War '' , the type achieved the distinction of attaining the first aerial victory of an RAF aircraft in the conflict .. Phoney War. Phoney War. However , by May 1940 , the Battle had suffered heavy losses , frequently in excess of 50 percent of sortied aircraft per mission .. By the end of 1940 , the type had been entirely withdrawn from active combat service , instead being mainly relegated to use by training units overseas .. For an aircraft which had been viewed to possess a high level of pre-war promise , the Battle quickly became one of the most disappointing aircraft in RAF service .
not_related.