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FAI Competition Classes Seven glider classes are currently recognised by the FAI and are eligible for European and World Championships : Gliding World Records are classified by the FAI under sub-classes that do not have a one-to-one correspondence with the above competition classes : Non-FAI Classes Glider classes not recognised by the FAI have been used in some regional and national competitions .
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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 
Text: {0} 
Answer:
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