Individual #Poland__Republic_of_Poland__Polska  a republic in central Europe; the invasion of Poland by Germany in 1939 started World War II
  instance of:  #European_country
  part:  #battle_of_Tannenberg  #Prussia  #Warsaw  #Cracow  #Gdansk  #Lodz  #Lublin  #Wroclaw  #Oder_River  #Vistula_River
  member:  #Pole
  part of:  #Europe  the 2nd smallest continent (actually a vast peninsula of Eurasia); the British use `Europe' to refer to all of the continent except the British Isles
     part of:  #Eurasia  the land mass formed by the continents of Europe and Asia
        part of:  #eastern_hemisphere__easternhemisphere__orient  the hemisphere that includes Eurasia and Africa and Australia
        part of:  #northern_hemisphere  the hemisphere north of the equator

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