#chapel  a place of worship that has its own altar
  supertype:  #place_of_worship__house_of_prayer__house_of_God__house_of_worship  any building where congregations gather for prayer
  subtype:  #chantry  a chapel endowed for singing Masses for the soul of the donor
  subtype:  #lady_chapel__ladychapel  a small chapel in a church; dedicated to the Virgin Mary
  subtype:  #side_chapel  a small chapel off the side aisle of a church

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