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Allen traveled to Europe multiple times to study school systems before creating his will expressing his wish to form the Lewis Institute .
 person: Allen; location: Europe; organization: Lewis
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Allen; location: Europe; organization: Lewis