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Robert College is a co-educational , boarding school with a wooded campus on the European side of Istanbul between the two bridges on the Bosphorus , with the Arnavutköy district to the east , and the upscale Ulus district to the west .
 location: Istanbul; organization: Bosphorus
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: Istanbul, Bosphorus 
Answer:
 location: Istanbul; organization: Bosphorus