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Though its exact relationship has not yet been determined by DNA analysis , ampelographers believe that the grape variety is closely related to the Hunnic grape Gouais blanc which is notable for being the mother vine to several grape varieties including Chardonnay and Gamay .
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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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