#railroad_track__railroad__railway  a line of track providing a runway for wheels; "he walked along the railroad track"
  supertype:  track.route  road consisting of a pair of parallel rails providing a runway for wheels
  subtype:  broad_gauge  elevated_railway  gantlet  rail_line  narrow_gauge  railroad_siding  standard_gauge  switch.railroad_track
  part:  railroad_tie  rails
  part of:  rail_line__line__railway_line__railwayline  railroad track and roadbed

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