208970
The initial field consisted of a L-shaped grass field , measuring 4,775 ' × 2,914 ' , with two grass runways measuring 1,700 ' east/west by 1,000 ' north/south .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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