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” After the breakup of the band , Elsten has continued both his own career as a solo artist and has had success writing for other well-known performers such as : Ricky Martin , Luis Fonsi , Obie Bermúdez , Alejandra Guzmán , Julio Iglesias , Jr. Aleks Syntek , Oscar de Leon , Marshall Crenshaw , John Rich ( Big & Rich ) and many others .
 Elsten, Ricky Martin, Luis Fonsi, Obie Bermúdez, Alejandra Guzmán, Julio Iglesias , Jr. Aleks Syntek, Oscar de Leon, Marshall Crenshaw
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Elsten, Ricky Martin, Luis Fonsi, Obie Bermúdez, Alejandra Guzmán, Julio Iglesias , Jr. Aleks Syntek, Oscar de Leon, Marshall Crenshaw