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On August 18 , 2010 they traded three pitching prospects for first baseman Derrek Lee from the Chicago Cubs .
 person: Derrek Lee; organization: Chicago Cubs
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: Derrek Lee; organization: Chicago Cubs