#quarter.piece_of_leather  piece of leather that comprises the part of a shoe or boot covering the heel and joining the vamp
  supertype:  #piece_of_leather  a piece of leather
  part of:  #upper  piece of leather that forms the part of a shoe or boot above the sole
     part of:  #footgear__footwear  covering for a person's feet

No statement uses or specializes #quarter.piece_of_leather; click here to add one.