Given the task definition and input, reply with output. In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it. Your job is to determine which sentence(s) from the passage can be used to search for further information needed to answer the question.

Question: When was the team founded that Ferdinand signed with on August 31 2012? Passage:On 31 August 2012, Ferdinand signed for Peterborough United on a four-year contract for an initial fee of 200,000, which could rise to 500,000. He made his debut on 15 September 2012 in a 52 away defeat to Burnley. He went on to play 33 times for Peterborough in the Championship during the 201213 season, scoring once the winning goal in a 10 victory away to Blackpool on 16 March 2013. Peterborough were relegated to League One on the last day of the season, and Ferdinand fell out of first-team contention. He joined League Two club Northampton Town on 31 October 2013 on a one-month loan. After making five appearances at Northampton, impressing manager Aidy Boothroyd, his loan ended early on 28 November as he was recalled by Peterborough. Ferdinand played in three games for Peterborough following his recall, before being sent on loan for the rest of the season to Conference Premier leaders Luton Town on 3 January 2014. He made one substitute appearance in the league for Luton, as well as starting in the FA Trophy, before returning to Peterborough. Luton manager John Still stated that Ferdinand had "not done as well as I had hoped." In November 2014, Ferdinand joined Cheltenham Town on a two-month loan.
On 31 August 2012, Ferdinand signed for Peterborough United on a four-year contract for an initial fee of 200,000, which could rise to 500,000