Individual #Yalu__Yalu_River  river in eastern Asia; rises in North Korea and flows southwest to Korea Bay (forming part of the border between North Korea and China)
  instance of:  #river
  part of:  #North_Korea__Democratic_People's_Republic_of_Korea  a communist country in the northern half of the Korean Peninsula; established in 1948
     part of:  #Korea__Korean_Peninsula__Choson  an Asian peninsula (off Manchuria) separating the Yellow Sea and the Sea of Japan; the Korean name is Choson
        part of:  #Asia  the largest continent with 60% of the earth's population; it is joined to Europe on the west to form Eurasia; it is the site of some of the world's earliest civilizations
           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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