#sea  a division of an ocean or a large body of salt water partially enclosed by land
  supertype:  body_of_water__water  the part of the earth's surface covered with water (such as a river or lake or ocean); "they invaded our territorial waters"; "they were sitting by the water's edge"
  subtype:  Barents_Sea  Caribbean_Sea  Irish_Sea  Labrador_Sea  Ross_Sea  Sargasso_Sea  South_Sea
  instance:  Adriatic_Sea  Aegean_Sea  Arabian_Sea  Baltic_Sea  Beaufort_Sea  Bering_Sea  Bismarck_Sea  Black_Sea  Coral_Sea  East_China_Sea  Greenland_Sea  Hudson_Bay  Ionian_Sea  Ligurian_Sea  Sea_of_Marmara  Mediterranean_Sea  North_Sea  Norwegian_Sea  Red_Sea  Sea_of_Japan  Sea_of_Okhotsk  South_China_Sea  Tyrrhenian_Sea  Yellow_Sea
  part of:  hydrosphere
  part:  bay  an indentation of a shoreline larger than a cove but smaller than an gulf
  part:  gulf  an arm of a sea or ocean partly enclosed by land; larger than a bay
  part:  inlet__recess  an arm off of a larger body of water (often between rocky headlands)

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