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The principal characters were Covina High School student Harold Teen , his girlfriend Lillums Lovewell , his diminutive sidekick Shadow Smart and Pop Jenks , proprietor of the Sugar Bowl soda shop where Harold consumed Gedunk sundaes .
 Covina High School
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Covina High School