Can trains move without tracks?

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  1. #without
  2. #physically
  3. #train
  4. #either
  5. #along
  6. #tracks
  7. #track
  8. #power
  9. #weight
  10. #engine
  11. #definite
  12. #directed
  13. #below
  14. #wagons
  15. #there
  16. #would
  17. #follow