4248
It serves as an extension of the Chorna River and stretches for which is the longest of them all .
 location: Chorna River
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Chorna River 
Answer:
 location: Chorna River