#mask.covering  a covering to disguise or conceal the face
  supertype:  #disguise.attire  any attire that modifies the appearance in order to conceal the wearer's identity
  subtype:  #half_mask__domino__eye_mask__eyemask  a mask covering the upper part of the face but with holes for the eyes
  subtype:  #false_face__falseface  a mask worn as part of a masquerade costume

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