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However , where there are early examples of permanent settlements ( though not necessarily permanently occupied ) such as those at Lepenski Vir , they are almost always associated with fishing as a major source of food .
 Lepenski Vir
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Lepenski Vir