27595
Although it would recover Constantinople in 1261 , Byzantium fell in 1453 when Constantinople was taken by the Ottoman Empire .
 location: Constantinople; location: Byzantium; location: Constantinople; location: Ottoman Empire
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Constantinople, Byzantium, Constantinople, Ottoman Empire 
Answer:
 location: Constantinople; location: Byzantium; location: Constantinople; location: Ottoman Empire