Individual #Gansu__Kansu  a province in north-central China; formerly part of the Silk Road to Turkistan and India and Persia
  instance of:  state.administrative_district
  part:  Lanzhou
  part of:  Silk_Road  an ancient trade route between China and the Mediterranean (4,000 miles); followed by Marco Polo in the 13th century to reach Cathay
  part of:  China__People's_Republic_of_China__mainland_China__Communist_China__Red_China__PRC  a communist nation that covers a vast territory in eastern Asia; the most populous country in the world
     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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