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The Polish Limnological Society ( Polish : Polskie Towarzystwo Limnologiczne ( PTLim ) ) is a Polish scientific society that disseminates information among limnologists , those who study all aspects of lakes , including their physics , chemistry , biology , geology , and management .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
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