48596
In the United States , the Office of Civil Defense was established in May 1941 to coordinate civilian defense efforts .
 United States, Office of Civil Defense
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 United States, Office of Civil Defense