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Other backing keyboard instruments include the piano , electric organ ( during early years ) , string synthesizers , and electromechanical keyboards such as the Fender Rhodes electric piano , Wurlitzer electric piano , and Hohner Clavinet .
 Fender Rhodes, Wurlitzer, Hohner Clavinet
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fender Rhodes, Wurlitzer, Hohner Clavinet