#bedstead__bedframe  the framework of a bed
  supertype:  article_of_furniture__furniture__piece_of_furniture  furnishings that make a room or other area ready for occupancy; "they had too much furniture for the small apartment"; "there was only one piece of furniture in the room"
  part:  bedpost  bedspring  footboard  headboard
  part of:  bed  a piece of furniture that provides a place to sleep; "he sat on the edge of the bed"; "the room had only a bed and chair"

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