200600
This follow-up to the Ritchie Valens Memorial Album/His Greatest Hits includes Valens ' last two charted singles and ten tracks from the three original albums .
 Ritchie Valens, Valens
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ritchie Valens, Valens