#hemisphere  half of the terrestrial globe
  supertype:  #geographical_area__geographic_area__geographical_region__geographic_region  a demarcated area of the Earth
  part of:  #Earth.terrestrial_planet
  subtype:  #eastern_hemisphere__easternhemisphere__orient  the hemisphere that includes Eurasia and Africa and Australia
  subtype:  #northern_hemisphere  the hemisphere north of the equator
  subtype:  #southern_hemisphere  the hemisphere south of the equator
  subtype:  #western_hemisphere__westernhemisphere__occident__New_World  the hemisphere that includes North and South America

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