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Together they shared their own fantasy world , Gondal , and , according to Ellen Nussey , in childhood they were " like twins " , " inseparable companions " and " in the very closest sympathy which never had any interruption " .
 Gondal, Ellen Nussey
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gondal, Ellen Nussey