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A few months later , the album was retitled " Ritchie Valens , His Greatest Hits " and repackaged with a white album cover and a photo of Ritchie taken from his Del-Fi EP " Ritchie Valens Sings " ( DFEP-1111 ) .
 person: Ritchie Valens; person: Ritchie; person: Ritchie Valens
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Ritchie Valens; person: Ritchie; person: Ritchie Valens