sentences:  tell application "Finder"
  end tell
  An important aspect of the AppleScript implementation is the Open Scripting Architecture (OSA).Apple provides OSA for other scripting languages and third-party scripting/automation products such as QuicKeys and UserLand Frontier, to function on an equal status with AppleScript.AppleScript was implemented as a scripting component, and the basic specs for interfacing such components to the OSA were public, allowing other developers to add their own scripting components to the system.