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Here are the official Fields and Events, for the TouchSensor node in the VRML text, according to the VRML2 Spec:
 TouchSensor {
  exposedField SFBool  enabled TRUE
  eventOut     SFVec3f hitNormal_changed
  eventOut     SFVec3f hitPoint_changed
  eventOut     SFVec2f hitTexCoord_changed
  eventOut     SFBool  isActive
  eventOut     SFBool  isOver
  eventOut     SFTime  touchTime

------->>> the source for the .wrl file!