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British actor and film director Lord Richard Attenborough has died at the age of 90 , his son tells the BBC http://t.co/Q09rNAmD0Q
 British, Lord Richard Attenborough, BBC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 British, Lord Richard Attenborough, BBC