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Automotive Expert System (FACTS ((basic facts) (spark-state (engine…

- - - - engine
        
        normal
        
        does-not-spark
        
        irregular-spark
    - - battery
        
        charged
        
        dead
    - - engine
        
        rotates
        
        does-not-rotate
    - - engine
        
        does-not-start
        
        unsatisfactory
        
        normal
  - - - engine
        
        low-output
        
        not-low-output
    - - "No repair needed."
      - "Clean the fuel line."
      - "Point gap adjustment."
      - "Timing adjustment."
      - "Add gas."
      - "Charge the battery."
      - "Replace the points."
      - "Clean the points."
      - "Repair the distributor lead wire."
      - "Replace the ignition coil"
      - "Take your car to a mechanic."