#stream__watercourse  a natural body of running water flowing on or under the earth
  supertype:  body_of_water__water  the part of the earth's surface covered with water (such as a river or lake or ocean); "they invaded our territorial waters"; "they were sitting by the water's edge"
  subtype:  branch.stream  brook  river  rivulet  tidal_river
  part:  ford__crossing  a shallow area in a stream that can be forded
  part:  meander  a curve in a stream
  part:  midstream  the middle of a stream

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