43383
Most of Armenia is drained by the Araks or its tributary , the Hrazdan , which flows from Lake Sevan .
 Armenia, Araks, Hrazdan, Lake Sevan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Armenia, Araks, Hrazdan, Lake Sevan