content: tell someObject to someAction to "ArgVal"
  
  tell current application's someProp to someAction
  
  current application's someProp to someAction
  
  
  tell current application's CtrlrSubclassAppDelegate to changeButtonImage()
  
  tell CtrlrSubclassAppDelegate of current application to changeButtonImage()
  
  tell (CtrlrSubclassAppDelegate of current application to changeButtonImage()) to dkdk()
  
  CtrlrSubclassAppDelegate of current application to changeButtonImage()
  
  current application's CtrlrSubclassAppDelegate to changeButtonImage()