83990
Apart from the scenic Caucasus Mountains , pebble and sand beaches , the city attracts vacation-goers with its subtropical vegetation , numerous parks , monuments , and extravagant Stalinist architecture .
 Caucasus Mountains
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Caucasus Mountains