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The National Weather Service then issued a tornado warning for Effingham and Chatham counties .
 organization: National Weather Service; location: Effingham; location: Chatham
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: National Weather Service, Effingham, Chatham 
Answer:
 organization: National Weather Service; location: Effingham; location: Chatham