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Lockheed Aeronautical Systems Co. , a unit of Lockheed Corp. , said it agreed to join with Aermacchi S.p . A. of Varese , Italy , to propose a new generation of jet trainers for the U.S. Air Force .
 organization: Lockheed Aeronautical Systems Co.; organization: Lockheed Corp.; organization: Aermacchi S.p . A.; geographical social political: Varese; geographical social political: Italy; geographical social political: U.S.; organization: Air Force
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 organization: Lockheed Aeronautical Systems Co.; organization: Lockheed Corp.; organization: Aermacchi S.p . A.; geographical social political: Varese; geographical social political: Italy; geographical social political: U.S.; organization: Air Force