4300
Sir Cliff Richard has been interviewed by South Yorkshire Police over an alleged sexual offence , his spokesman says http://t.co/AmnMtTxeZn
 Cliff Richard, South Yorkshire Police
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cliff Richard, South Yorkshire Police