323578
The two officers became friends when they were both stationed in Cairo during the period of 1958-1961 United Arab Republic merger between Syria and Egypt : while ardent Pan Arab nationalists , they both worked to break up the union , which they viewed as unfairly balanced in Egypt 's favor .
 location: United Arab Republic; location: Egypt; location: Arab; location: Egypt
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: United Arab Republic, Egypt, Arab, Egypt 
Answer:
 location: United Arab Republic; location: Egypt; location: Arab; location: Egypt