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The average river flow is 92 m ³ / s. Recreational use of the river includes the increasingly popular tourist activity balsaje , in which groups of up to 16 people explore the slow-flowing river in large rafts made of guadua .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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