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-DOCSTART- Brazos River is becoming very dangerous . This will imminently become the next major issue for the Houston area . # hounews https://t.co/1vRul9F6tj
 river: Brazos
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: exact location, area, road, river 
Text: {0} 
Answer:
 river: Brazos