4799
In 1943 , Altman joined the United States Army Air Forces at the age of 18 .
 person: Altman; organization: United States Army Air Forces
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: Altman; organization: United States Army Air Forces