#rib  support resembling the rib of an animal
  supertype:  #support.device  any device that bears the weight of another thing; "there was no place to attach supports for a shelf"
  subtype:  #screw_thread  the raised helical rib going around a screw
  part of:  #hull  the frame or body of ship
     part of:  #vessel.craft__watercraft  a craft designed for water transportation
  part of:  #umbrella  a lightweight handheld collapsible canopy
  part of:  #wing.airfoil  one of the horizontal airfoils on either side of the fuselage of an airplane
     part of:  #airplane__aeroplane__plane  an aircraft that has a fixed wing and is powered by propellers or jets; "the flight was delayed due to trouble with the airplane"

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