22745
In the recording studio he met Genesis ' Phil Collins , Phil Spector , Ringo Starr , Billy Preston and Harrison .
 Genesis, Phil Collins, Phil Spector, Ringo Starr, Billy Preston, Harrison
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Genesis, Phil Collins, Phil Spector, Ringo Starr, Billy Preston, Harrison