3297
-DOCSTART- As far as we know the plant ( one of Houston 's 3 key water treatment facilities ) remains up and running . https://t.co/ezwOtJYXTL
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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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