9611
It is the second largest river that has its source in the Rhodopes after the Arda .
 location: Rhodopes; location: Arda
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: Rhodopes; location: Arda