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-DOCSTART- EVALUATE NOW : Mandatory evacuations ordered in Waller Co. along Brazos River https://t.co/d8d99RNJ8d # ABC13 # Hounews https://t.co/uNOe4j1hfo
 Waller Co., Brazos River
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:
 Waller Co., Brazos River