#superstructure  structure consisting of the part of a ship above the main deck
  supertype:  #physical_structure__structure__construction  a thing constructed; a complex construction or entity; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons"
  subtype:  #deck-house  a superstructure on the upper deck of a ship
  part of:  #ship  a vessel that carries passengers or freight

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