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Unlike the White Nile , the Blue Nile carries a considerable amount of sediment .
 location: White Nile; location: Blue Nile
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: White Nile, Blue Nile 
Answer:
 location: White Nile; location: Blue Nile