#playground  yard consisting of an outdoor area for children's play
  supertype:  #curtilage__yard__grounds  the enclosed land around a house or other building; "it was a small house with almost no yard"
  part:  #seesaw__teeter-totter__teeterboard  a plaything that is ridden up and down by children at either end
  part:  #slide.plaything  plaything consisting of a sloping chute down which children can slide
  part:  #swing.plaything  mechanical device used as a plaything to support someone swinging back and forth

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