Part 1. Definition
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].
Part 2. 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.
Answer: China
Explanation: This is a good example. Based on the passage, any cubs will return to China at the age of two
Part 3. Exercise
Gorillas are considered to be highly intelligent mammals. So much so in fact that one named Koko was able to learn a subset of sign language. But one cheeky gorilla showed off a form of its own sign language while being filmed at a wildlife park – by appearing to give the middle finger. The blackback gorilla can be seen annoying its fellow ape by sticking up his middle finger Captured at Busch Gardens in Tampa, Florida, US, the large silverback gorilla can be seen interacting with an older blackback. Picking up a toy, the blackback throws it at the silverback who protects itself by lifting a hand to its face.A blackback gorilla annoys a silverback by throwing a toy at itSilverback responds by appearing to give the ape the middle fingerResponding in playful fury the blackback throws the toy once moreThe hilarious incident took place at Tampa's Busch Gardens wildlife park 
 Question:_ gorillas are generally more than 12-years-old, and feature a distinctive patch of silver hair on their backs.
Answer:
Silverback