86622
Three ground communications vans were located at Otis AFB , MA , Greenville , SC , and Homestead AFB , FL to cover commonly used routes of Presidential aircraft .
 MA, Greenville , SC, FL
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 MA, Greenville , SC, FL