#upper  piece of leather that forms the part of a shoe or boot above the sole
  supertype:  piece_of_leather  a piece of leather
  part of:  footgear
  part:  quarter.piece_of_leather  piece of leather that comprises the part of a shoe or boot covering the heel and joining the vamp
  part:  toe.covering  the part of footwear that provides a covering for the toes
  part:  vamp  piece of leather forming the front part of the upper of a shoe

No statement uses or specializes upper; click here to add one.