218350
The 2d Bomb Group and the 97th Bomb Group were the primary tenants at the airfield , both flying B-17 Flying Fortress es missions over targets in Italy ; Tunisia ; Sicily and Sardinia .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None