Question: How many records have been sold by one of the writers of "Bachelor Boy"?
Related documents: [0]  [DOC] "Bachelor Boy" (written by Bruce Welch and Cliff Richard) was a double 'A' side with "The Next Time" the first of three number one hit singles from the Cliff Richard musical, "Summer Holiday". It was followed at number one by The Shadows "Dance On!". The single spent three weeks at No. 1 in the UK Singles Chart in January 1963. [END] 
[1]  [DOC] Sir Cliff Richard {'1': ", '2': ", '3': 'OBE', '4': "} (born Harry Rodger Webb, 14 October 1940) is a British pop singer, musician, performer, actor and philanthropist. Richard has sold more than 250 million records worldwide. He has total sales of over 21 million singles in the United Kingdom and is the third-top-selling artist in UK Singles Chart history, behind the Beatles and Elvis Presley. [END] 
Answer: 
more than 250 million
more than 250 million