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The Air Force is looking to buy 540 new primary jet trainers , with a total value of $ 1.5 billion to $ 2 billion , between 1994 and 2004 .
 organization: The Air Force; cardinal: 540; money: $ 1.5 billion to $ 2 billion; date: between 1994 and 2004
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: The Air Force; cardinal: 540; money: $ 1.5 billion to $ 2 billion; date: between 1994 and 2004