137907
The song was written by Tony Hiller , who had scored great success in the 1970s as manager for Brotherhood of Man , and one-time member Barry Upton .
 Tony Hiller, Barry Upton
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tony Hiller, Barry Upton