This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Ex Input:
Passage: In January 1956, the new Constitution of Egypt was drafted, entailing the establishment of a single-party system under the National Union (NU), a movement Nasser described as the "cadre through which we will realize our revolution". The NU was a reconfiguration of the Liberation Rally, which Nasser determined had failed in generating mass public participation. In the new movement, Nasser attempted to incorporate more citizens, approved by local-level party committees, in order to solidify popular backing for his government. The NU would select a nominee for the presidential election whose name would be provided for public approval. Question: What was the dominant political party? 

Ex Output:
National Union


Ex Input:
Passage: Nanjing borders Yangzhou to the northeast, one town downstream when following the north bank of the Yangtze, Zhenjiang to the east, one town downstream when following the south bank of the Yangtze, and Changzhou to the southeast. On its western boundary is Anhui province, where Nanjing borders five prefecture-level cities, Chuzhou to the northwest, Wuhu, Chaohu and Maanshan to the west and Xuancheng to the southwest. Question: What city is northeast of Nanjing?

Ex Output:
Yangzhou


Ex Input:
Passage: There have always been Arsenal supporters outside London, and since the advent of satellite television, a supporter's attachment to a football club has become less dependent on geography. Consequently, Arsenal have a significant number of fans from beyond London and all over the world; in 2007, 24 UK, 37 Irish and 49 other overseas supporters clubs were affiliated with the club. A 2011 report by SPORT+MARKT estimated Arsenal's global fanbase at 113 million. The club's social media activity was the fifth highest in world football during the 2014–15 season. Question: In 2011 what was Arsenal's estimated fan base?

Ex Output:

113 million