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The institute carries out for Liechtenstein relevant research in the following four special fields : Institute The Liechtenstein Institute was founded on August 15 1986 , the national holiday of the Principality of Liechtenstein by the initiative of Gerard Batliner as a research center for practial and fundamental research relating to Liechtenstein .
 Liechtenstein, Liechtenstein, Principality, Liechtenstein, Gerard Batliner, Liechtenstein
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Liechtenstein, Liechtenstein, Principality, Liechtenstein, Gerard Batliner, Liechtenstein