Sentence 1: Joy began untwisting the burned out bulb in her room. 
 Sentence 3: Sharp jagged glass stuck out from the light fixture 
 Sentence 4:  Joy pushed a potato cut in half onto the broken bulb 
 Sentence 5:  Twisting the potato, she was able to get the bulb out of the fixture 
 Option 1: The bulb broke in half. 
 Option 2: The bulb was still in good condition.