#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"
  part of:  #ship
  subtype:  #deck-house  a superstructure on the upper deck of a ship

No statement uses or specializes #superstructure; click here to add one.