#sole  the underside of footwear or a golfclub
  supertype:  underside__bottom__undersurface  the lower side of anything
  part:  waist
  part of:  footgear  golfclub_head
  subtype:  half_sole  shoe sole extending from the shank to the toe
  subtype:  insole__innersole  the inner sole of a shoe or boot
  subtype:  outsole  the outer sole of a shoe or boot

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