11972
About 60 police , helicopters and fixed-wing aircraft have maintained an overnight cordon around 15 sq km ( six sq miles ) of bush near Glenwood .
 Glenwood
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Glenwood