5059
It was written by David Foster , Carole Bayer Sager , Alberto Testa and Tony Renis .
 David Foster, Carole Bayer Sager, Alberto Testa, Tony Renis
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 David Foster, Carole Bayer Sager, Alberto Testa, Tony Renis