92144
He joined the Australian Defence Force as an infantryman , but was invalided and joined the YMCA services , and served in Egypt , England and France before being hospitalized in 1917 with trench fever and gassing , and being returned to Australia .
 Australian Defence Force, YMCA, Egypt, England, France, Australia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Australian Defence Force, YMCA, Egypt, England, France, Australia