An XM Document Instance

  Warp Speed, Ms Bright!
  There was a young lady named Bright,
  Who travelled much faster than
  She departed one day,
  In a relative way way,
  And returned on the previous night.
  The speed of light, i.e. c = 300,000 km/s, is the
    theorhetical speed limit of the universe. For more information see
Introduction to XML, slide 14 of 19