#knife.weapon_system  a weapon with a handle and blade with a sharp point
  supertype:  weapon__weapon_system__arm  instrument used in fighting or hunting; "he was licensed to carry a weapon"
  subtype:  bayonet  sticker  flick-knife  machete  shiv  trench_knife  yataghan
  part:  point.convex_shape__tip  a V shape; "the cannibal's teeth were filed to sharp points"

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