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Some prominent indigenous structures are the preceramic and ceramic archaeological site of Tequendama , Tierradentro ( a park that contains the largest concentration of pre-Columbian monumental shaft tombs with side chambers ) , the largest collection of religious monuments and megalithic sculptures in South America , located in San Agustín , Huila , Lost city ( an archaeological site with a series of terraces carved into the mountainside , a net of tiled roads , and several circular plazas ) , and the large villages mainly built with stone , wood , cane , and mud .
 Tequendama, Tierradentro, South America, San Agustín, Huila, Lost city
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tequendama, Tierradentro, South America, San Agustín, Huila, Lost city