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It is known that crew from Semyon Dezhnev 's expedition wintered close to the site of the current settlement and that Anadyrsk was founded on the site at a later date as a base for exploring Chukotka and potential routes to Kamchatka .
 Semyon Dezhnev 's, Chukotka
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Semyon Dezhnev 's, Chukotka