#course.layer__row  a layer of masonry; "a course of bricks"
  supertype:  #layer.flat_solid  single thickness of usually some homogeneous substance
  subtype:  #row_of_bricks  a course of bricks place next to each other (usually in a straight line)
  part of:  #wall  an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure; "the south wall had a small window"; "the walls were covered with pictures"
     part of:  #edifice__building  a structure that has a roof and walls and stands more or less permanently in one place; "there was a three-story building on the corner"; "it was an imposing edifice"
     part of:  #hallway__hall  an interior passage or corridor onto which rooms open; "the elevators were at the end of the hall"
     part of:  #room  an area within a building enclosed by walls and floor and ceiling; "the rooms were very small but they had a nice view"
        part of:  #edifice__building  a structure that has a roof and walls and stands more or less permanently in one place; "there was a three-story building on the corner"; "it was an imposing edifice"

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