10784
Historically , Palestine was under Turkish ( Ottoman Empire ) rule for four hundred years prior to the days of the British Mandate of Palestine .
 Palestine, Ottoman Empire, British Mandate of Palestine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Palestine, Ottoman Empire, British Mandate of Palestine