#arcade.structure__colonnade  a structure composed of a series of arches supported by columns
  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:  #loggia  a roofed arcade or gallery with open sides stretching along the front or side of a building; often at an upper level
  part:  #arch  (architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it
     part:  #keystone__headstone  the central building block at the top of an arch or vault
     part:  #springer__impost  the lowest stone in an arch -- from which it springs
     part:  #voussoir  wedge-shaped stone building block used in constructing an arch or vault

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