#roofing_tile__roofingtile__tile  a thin flat slab of fired clay used for roofing
  supertype:  #roofing_material__roofingmaterial  building material used in constructing roofs
  substance:  #clay
  subtype:  #hip_tile__hiptile  a tile shaped so as to cover the hip of a hip roof
  subtype:  #pantile  a roofing tile with a S-shape; laid so that curves overlap
  subtype:  #ridge_tile__ridgetile  an decorative tile that is bent in cross section; used to cover the ridge of a roof

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