#skin.bag  a bag serving as a container for liquids; it is made from the skin of an animal
  supertype:  #bag  a flexible container with a single opening; "he stuffed his laundry into a large bag"
  subtype:  #waterskin__water_skin__waterskin  a container of skin for holding water
  subtype:  #wineskin  an animal skin (usually a goatskin) that forms a bag and is used to hold and dispense wine

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