7915
The Upper Neretva has water of Class I purity and is almost certainly the coldest river water in the world , often as low as 7 – 8 degrees Celsius in the summer months .
 location: Upper Neretva
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Upper Neretva