You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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. Among the entities, try to find the best entity that is most likely to fill in "_" and classify the answers based on options.

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. (A) Tian Tian (B) UK (C) Edinburgh Zoo (D) Sweetie (E) Yang Guang (F) China
Solution: (F)
Why? This is a good example. Based on the passage, any cubs will return to China at the age of two

New input: (CNN) Syrian government forces say they have retaken control of the rest of Aleppo, but there is no military solution to the conflict in Syria. Only a widely accepted political settlement can end the fighting and stitch the country back together. The recent Syrian regime offensive -- supported by Russian and Iranian-backed forces -- to capture the rest of the eastern side of the city has led to the complete fall of the besieged area. However the Syrian regime's recent victories have raised many questions about the impact of these gains on the conflict in Syria and the fate of the country.Haid: Even if Assad is able to control Syria militarily, after a long struggle, the regime will still not be able to efficiently run the countryDespite the significance of Aleppo, the fate of the city alone is not a decisive factor in the Syrian conflict 
 Questions:For years, experts working on _ have been advising -- even when the Syrian regime was collapsing -- against ending the Syrian conflict militarily. (A) CNN (B) Syrian (C) Aleppo (D) Russian (E) Iranian (F) Haid (G) Assad
Solution:
(B)