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U.N. officials said more than 1,000 aid workers will take part in the census from Sunday until Tuesday of the estimated 727,000 refugees in camps around the eastern Zairean border town of Goma .
 else: Zairean; organization: U.N.; location: Goma
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 else: Zairean; organization: U.N.; location: Goma