1997
In addition , pearl diving and the pearl industry had been the main economic activity of many of these countries , particularly Bahrain , United Arab Emirates , Qatar , and Kuwait .
 location: Bahrain; location: Arab Emirates; location: Qatar; location: Kuwait
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Bahrain; location: Arab Emirates; location: Qatar; location: Kuwait