4293
19th Bombardment ( later , 19th Operations ) Group : 17 August 1948 – 1 June 1953 ( detached 28 June 1950 – 1 June 1953 ) ; 1 September 1991 – 1 July 1996
 organization: 19th Bombardment ( later ,; organization: 19th Operations ) Group
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:
 organization: 19th Bombardment ( later ,; organization: 19th Operations ) Group