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On 12 April 2011 , she played live via video link for the audience of Jethro Tull ( band ) 's show in Russia in honour of the 50th anniversary of Yuri Gagarin 's flight , playing in orbit while Anderson played on the ground .
 Jethro Tull, Russia, Anderson
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jethro Tull, Russia, Anderson