TASK DEFINITION: This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
PROBLEM: From 1974 (the creation of the British colony of Tuvalu) until independence, the legislative body of Tuvalu was called the House of the Assembly or Fale I Fono. Following independence in October 1978 the House of the Assembly was renamed the Parliament of Tuvalu or Palamene o Tuvalu. The unicameral Parliament has 15 members with elections held every four years. The members of parliament select the Prime Minister (who is the head of government) and the Speaker of Parliament. The ministers that form the Cabinet are appointed by the Governor General on the advice of the Prime Minister.

SOLUTION: When did Tuvalu acquire independence?

PROBLEM: The city uses the strong-mayor version of the mayor-council form of government, which is headed by one mayor, in whom executive authority is vested. Elected at-large, the mayor is limited to two consecutive four-year terms under the city's home rule charter, but can run for the position again after an intervening term. The Mayor is Jim Kenney, who replaced Michael Nutter, who served two terms from 2009 to January 2016. Kenney, as all Philadelphia mayors have been since 1952, is a member of the Democratic Party, which tends to dominate local politics so thoroughly that the Democratic Mayoral primary is often more widely covered than the general election. The legislative branch, the Philadelphia City Council, consists of ten council members representing individual districts and seven members elected at large. Democrats currently hold 14 seats, with Republicans representing two allotted at-large seats for the minority party, as well as the Northeast-based Tenth District. The current council president is Darrell Clarke.

SOLUTION: What type of government does Philadelphia have?

PROBLEM: Nanjing is the intersection of Yangtze River, an east-west water transport artery, and NanjingBeijing railway, a south-north land transport artery, hence the name "door of the east and west, throat of the south and north". Furthermore, the west part of the Ningzhen range is in Nanjing; the Loong-like Zhong Mountain is curling in the east of the city; the tiger-like Stone Mountain is crouching in the west of the city, hence the name "the Zhong Mountain, a dragon curling, and the Stone Mountain, a tiger crouching". Mr. Sun Yet-sen spoke highly of Nanjing in the "Constructive Scheme for Our Country", "The position of Nanjing is wonderful since mountains, lakes and plains all integrated in it. It is hard to find another city like this."

SOLUTION:
What is the east-west waterway near Nanjing?