159205
The return of Liberty and Fauquier High Schools to AA after the opening of Kettle Run High School forced the Northwestern District to split into two districts , with Skyline , Handley and the three Frederick County schools keeping the Northwestern District name .
 AA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 AA