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Commissioned by the BBC , the piece was written in April 1993 by Tavener as a tribute to Athene Hariades , a young half-Greek actress who was a family friend killed in a cycling accident .
 BBC, Tavener
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 BBC, Tavener