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].

Let me give you an example: 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.
The answer to this example can be: China
Here is why: This is a good example. Based on the passage, any cubs will return to China at the age of two

OK. solve this:
(CNN) If President-elect Donald Trump decides to make good on his campaign pledge to "load up" the prison camp in Guantanamo Bay, Cuba, with new domestic terror suspects caught in the US -- including American citizens -- legal experts say he is asking for an unprecedented constitutional showdown. Voters first received a peek at Trump's stance on Guantanamo Bay back in 2015 when talking points on various policy questions were leaked ahead of a Republican debate. On the issue of whether he would close the detention facility, the memo stated: "No. I would also take away the passports of Americans who fight for ISIS and send them to Gitmo for some R&R."The prison at Guantanamo Bay opened its doors in 2002 and currently houses 60 detaineesNo American accused of terrorist activity on US soil has ever been held at Guantanamo Bay 
 Question:National security experts outside of Trump's inner circle, however, said he will face a different reality once he becomes president and discover the unique challenges posed by _.
Answer:
Guantanamo Bay