PROTO dialog-conversation [ ## "@vr-extern-proto-dialog-conversation.wrl"
  exposedField SFInt32 switch 0
  exposedField SFColor color 0 0 1
  exposedField SFFloat transparency 0
  exposedField SFNode  node NULL
  exposedField SFTime cycle 1
  
  exposedField SFVec3f translation 0 0 0 
  exposedField SFVec3f scale 1 1 1
  exposedField SFRotation rotation 0 0 1 0
  
  exposedField MFNode children NULL
  eventIn MFNode addChildren
  eventIn MFNode removeChildren
  
  exposedField MFString scene ["@vr-box.wrl"]
  
  exposedField SFBool reverse TRUE
  
  exposedField SFNode p1 NULL
  exposedField SFNode p2 NULL
  
  exposedField SFNode b1 USE b1
  exposedField SFNode b2 USE b2
  
  exposedField SFTime speed 3