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His form rallied somewhat in the last three seasons of his career and he formed another outstanding opening partnership with Len Hutton who matured into a Test-class batsman in 1937 .
 person: Len Hutton
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: Len Hutton