#Ruhr_River__Ruhr  a tributary of the Rhine
  supertype:  #river  a large natural stream of water (larger than a creek); "the river was navigable for 50 miles"
  part of:  #Germany__Federal_Republic_of_Germany__Deutschland__FRG  a republic in central Europe; split into East German and West Germany after World War II and reunited in 1990
     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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