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1.
IF
Headlights don’t work
THEN faulty Bulbs or/and Battery
2.
IF
faulty Bulbs or/and Battery
AND
Engine does not start
THEN faulty Battery
3.
IF
faulty Bulbs or/and Battery
AND
Engine starts
THEN faulty Bulbs
4.
IF
Engine does not start
THEN faulty Battery or/and Ignition
5.
IF
faulty Battery or/and Ignition
AND
Headlights work
THEN faulty Ignition
6.
IF
Wipers don’t work
AND
Engine does not start
THEN faulty Battery
7.
IF
Wipers don’t work
AND
Engine starts
THEN faulty Wiper Motor
8.
IF
Wipers don’t work
AND
Headlights work
THEN faulty Wiper Motor
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*
Case 1
Engine
Case 2
No
Engine
Case 3
No
Engine
-
Headlights -
Headlights No
HeadlightsYes
Wipers
Wipers
Wipers
faulty
Ignition
-
-
faulty
Battery
No
faulty
Wiper Motor
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E&
(Engine, Wipers)
(-, No)
(No, -)
Case 3
(Headlights)
(-)
Engine
HeadlightsYes
(No)
Wipers
Case 1
Engine
Engine
No
Headlights -
Headlights No
Wipers
Wipers
-
faulty
Ignition
No
faulty
Wiper Motor
Case 2
No
-
-
faulty
Battery
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Input Situation
Engine
No
Headlights No
Wipers
Yes
???
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2
&
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$&7((P)&#6>=f)54&(P#m$7),I
Case 4
Engine
No
Headlights No
Wipers
Yes
faulty Bulbs and
faulty Ignition
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Root
Headlights
Yes
No
Wipers
Yes
Wipers
No
faulty
Bulbs
Yes
faulty
Bulbs
Engine
Yes
faulty
Wiper Motor
No
Engine
Yes
No
faulty
Ignition
faulty
Wiper Motor
No
faulty
Battery
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Root
Engine
Yes
No
Headlights
Wipers
Yes
faulty
Bulbs
No
Yes
faulty
Wiper Motor
faulty
Ignition
No
faulty
Battery
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