26515
Several airfields were built in the outlying regions of the city at this time , Maydown , Eglinton and Ballykelly .
 Maydown, Eglinton, Ballykelly
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Maydown, Eglinton, Ballykelly