NavigationInfo { 
   type  ["WALK"]
  }
  
  Viewpoint {
   description "start"
   position 0 1.7 0
   orientation 0 1 0 0
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  Background{ skyColor .3 .6 .9}
  
  DEF ROOT Transform {
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   geometry IndexedFaceSet{ solid FALSE
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   geometry IndexedFaceSet{ solid FALSE
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    geometry IndexedFaceSet {
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  ROUTE Clock.fraction_changed TO Animation.set_fraction
  ROUTE Animation.value_changed TO poly.rotation