10221
Helen Shapiro , a friend of the Beatles and present at this overdub session , says that Ringo Starr also added extra cymbals " over the top " and that " apparently this was something he did quite often on their records " .
 Helen Shapiro, the Beatles, Ringo Starr
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Helen Shapiro, the Beatles, Ringo Starr