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-DOCSTART- RT @HoustonOEM : .@SylvesterTurner : Please go to https://t.co/9sklfqEQ1S to register as a volunteer if you want to help . # houstonflood .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: exact location, area, road, river 
Text: {0} 
 Entities:  
Answer:
 None