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Dimitrij Andrusov ( November 7 , 1897 - April 1 , 1976 ) was a Slovak geologist , member of the Slovak Academy of Sciences .
 Dimitrij Andrusov, Slovak, Slovak
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dimitrij Andrusov, Slovak, Slovak