43864
The judge ultimately decided to reduce the fine from roughly 2.3 million dollars to 1.5 million for building a fishing platform on Guaíba River in a ' heritage-protected ' area .
 Guaíba River
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Guaíba River