3069
Begumpet and Shamshabad air traffic controllers lost contact with the aircraft at 10:02 " am while it was passing through the dense Nallamala forest area .
 Begumpet, Shamshabad, Nallamala
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Begumpet, Shamshabad, Nallamala