In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

Example input: For four years we have waited expectantly for the pitter patter of tiny paws. Soon, that wait could finally be over. Tian Tian, the UK's only female giant panda, has conceived and could give birth to a cub as early as August. However Edinburgh Zoo, where the pandas live, have warned people 'not to get too excited' as the process is 'extremely complex'. Moreover, on the two previous occasions keepers inseminated Tian Tian - whose name means 'Sweetie' - she has failed to produce a panda cub. She was artificially inseminated again in March this year, but keepers at the zoo say implantation - when a fertilised egg attaches to the uterus - has not yet occurred.Tian Tian has conceived and could give birth to a cub as early as AugustShe has been inseminated twice before but so far failed to produce a cubTian Tian and Yang Guang arrived in 2011 from China to great fanfareOn loan at £600k a year, became first giant pandas to live in UK for 17 years 
 Questions:Under the terms of the agreement any cubs will return to _ at the age of two, the age at which they would normally leave their mother in the wild.
Example output: China
Example explanation: This is a good example. Based on the passage, any cubs will return to China at the age of two
Q: Mainz 05 general manager Christian Heidel has warned that English football is on the brink of collapse if Premier League clubs continue to pay such exorbitant fees and wages. The Premier League broke the current spending record by splashing out £870millon during the summer transfer window with Kevin de Bruyne's £54m move from Wolfsburg to Manchester City the most expensive signing of the summer. Outlays like this have led Heidel, who gave former Borussia Dortmund boss Jurgen Klopp his first management role, to believe the English market could collapse within 'the next two to three years'. Speaking to Bild, Heidel was asked for his opinion on this summer's increasingly high transfer fees and wage offers, particularly those offered to Bundesliga players by clubs from the Premier League.Premier League clubs spent record £870m on transfers in summer windowMainz chief Christian Heidel has warned the English market will collapseManchester City signed Kevin De Bruyne from Wolfsburg for £54mGermany coach Joachim Low claims English clubs' spending has been reinvested to help develop his national team 
 Question:'_ clubs are now paying three times what they used to,' he said.
A:
Premier League