With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Newfoundland and Labrador contains an island.
text_B: The Fletcher class was a class of destroyers built by the United States during World War II .. class. ship class. World War II. World War II. United States. United States. The class was designed in 1939 , as a result of dissatisfaction with the earlier destroyer leader types of the Porter and Somers classes .. class. ship class. destroyer. destroyer. destroyer leader. destroyer leader. Some went on to serve during the Korean War and into the Vietnam War .. Korean War. Korean War. Vietnam War. Vietnam War. The United States Navy commissioned 175 Fletcher-class destroyers between 1942 and 1944 , more than any other destroyer class , and the design was generally regarded as highly successful .. class. ship class. destroyer. destroyer. United States Navy. United States Navy. United States. United States. Fletchers had a design speed of 38 knots , and an armament of five 5 '' guns in single mounts with 10 21 '' torpedoes in two quintuple centerline mounts .. The Allen M. Sumner and Gearing classes were Fletcher derivatives .. The long-range Fletcher-class ships performed every task asked of a destroyer , from anti-submarine warfare and anti-aircraft warfare to surface action .. class. ship class. destroyer. destroyer. anti-submarine warfare. anti-submarine warfare. anti-aircraft warfare. anti-aircraft warfare. They could cover the vast distances required by fleet actions in the Pacific .. In fact , they served almost exclusively in the Pacific Theater of Operations during World War II , during which they accounted for 29 Imperial Japanese Navy submarines sunk .. World War II. World War II. Pacific Theater of Operations. Asiatic-Pacific Theater. Imperial Japanese Navy. Imperial Japanese Navy. In a massive effort , the Fletchers were built by shipyards across the United States and , after World War II ended , 11 were sold to countries they had been built to fight against  : Italy , Germany , and Japan , as well as other navies , where they would go on to have even longer , distinguished careers .. World War II. World War II. United States. United States. Italy. Italy. Germany. Germany. Japan. Japan. Three have been preserved as museum ships in the U.S. and one in Greece .
not_related.