% ruby space.rb simulate public_6.in 
=== Starports ===
Tatooine 1
Dagobah 1
Endor 2
=== Starships ===
MillenniumFalcon 2
DeathStar 4
TieFighter 1
=== Travelers ===
Luke Tatooine Dagobah Endor 
Han Tatooine Endor 
Leia Tatooine Endor 
Vader Endor Tatooine Endor 
=== Output ===
MillenniumFalcon docking at Tatooine
  Luke boarding MillenniumFalcon at Tatooine
  Leia boarding MillenniumFalcon at Tatooine
MillenniumFalcon departing from Tatooine
TieFighter docking at Tatooine
  Han boarding TieFighter at Tatooine
MillenniumFalcon docking at Dagobah
  Luke departing MillenniumFalcon at Dagobah
TieFighter departing from Tatooine
DeathStar docking at Tatooine
MillenniumFalcon departing from Dagobah
TieFighter docking at Dagobah
DeathStar departing from Tatooine
MillenniumFalcon docking at Endor
  Vader boarding MillenniumFalcon at Endor
  Leia departing MillenniumFalcon at Endor
TieFighter departing from Dagobah
DeathStar docking at Dagobah
  Luke boarding DeathStar at Dagobah
MillenniumFalcon departing from Endor
TieFighter docking at Endor
  Han departing TieFighter at Endor
DeathStar departing from Dagobah
MillenniumFalcon docking at Tatooine
  Vader departing MillenniumFalcon at Tatooine
TieFighter departing from Endor
DeathStar docking at Endor
  Luke departing DeathStar at Endor
MillenniumFalcon departing from Tatooine
TieFighter docking at Tatooine
  Vader boarding TieFighter at Tatooine
DeathStar departing from Endor
MillenniumFalcon docking at Dagobah
TieFighter departing from Tatooine
DeathStar docking at Tatooine
MillenniumFalcon departing from Dagobah
TieFighter docking at Dagobah
DeathStar departing from Tatooine
MillenniumFalcon docking at Endor
TieFighter departing from Dagobah
DeathStar docking at Dagobah
MillenniumFalcon departing from Endor
TieFighter docking at Endor
  Vader departing TieFighter at Endor
DeathStar departing from Dagobah
MillenniumFalcon docking at Tatooine
TieFighter departing from Endor