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The construction of the Tabqa Dam in Syria led to a large international campaign coordinated by UNESCO to document the heritage that would disappear under the waters of Lake Assad .
 Tabqa Dam, Syria, UNESCO, Lake Assad
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tabqa Dam, Syria, UNESCO, Lake Assad