Task: Explanation
Input (English): Edward Leadbitter (18 June 1919 – 23 December 1996) was a British Labour politician. Leadbitter was a teacher, and served as a councillor on West Hartlepool Borough Council. Leadbitter was Member of Parliament for Hartlepool from February 1964, until he retired in March 1992. His successor was Peter Mandelson. Question: Ted Leadbitter's successor is president of what international think tank? Answer: Policy Network
Output (English):  His successor was Peter Mandelson.