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-DOCSTART- RT @HoustonISD : HISD campuses and offices are closed all week due to Tropical Storm Harvey . We will re - open Tuesday 9/5 . # HISD # TeamHISD
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: exact location, area, road, river 
Text: {0} 
Answer:
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