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: Devonport Dockyard is the UK's only naval base that refits nuclear submarines and the Navy estimates that the Dockyard generates about 10% of Plymouth's income. Plymouth has the largest cluster of marine and maritime businesses in the south west with 270 firms operating within the sector. Other substantial employers include the university with almost 3,000 staff, as well as the Tamar Science Park employing 500 people in 50 companies. Several employers have chosen to locate their headquarters in Plymouth, including Hemsley Fraser.

SOLUTION: About what percentage of Plymouth's income comes from the Dockyard?

PROBLEM: In Hong Kong, the Supreme Court of Hong Kong (now known as the High Court of Hong Kong) was the final court of appeal during its colonial times which ended with transfer of sovereignty in 1997. The final adjudication power, as in any other British Colonies, rested with the Judicial Committee of the Privy Council (JCPC) in London, United Kingdom. Now the power of final adjudication is vested in the Court of Final Appeal created in 1997. Under the Basic Law, its constitution, the territory remains a common law jurisdiction. Consequently, judges from other common law jurisdictions (including England and Wales) can be recruited and continue to serve in the judiciary according to Article 92 of the Basic Law. On the other hand, the power of interpretation of the Basic Law itself is vested in the Standing Committee of the National People's Congress (NPCSC) in Beijing (without retroactive effect), and the courts are authorised to interpret the Basic Law when trying cases, in accordance with Article 158 of the Basic Law. This arrangement became controversial in light of the right of abode issue in 1999, raising concerns for judicial independence.

SOLUTION: When did Britain formally surrender sovreignty over Hong Kong?

PROBLEM: Breakage was very common in the shellac era. In the 1934 John O'Hara novel, Appointment in Samarra, the protagonist "broke one of his most favorites, Whiteman's Lady of the Evening ... He wanted to cry but could not." A poignant moment in J. D. Salinger's 1951 novel The Catcher in the Rye occurs after the adolescent protagonist buys a record for his younger sister but drops it and "it broke into pieces ... I damn-near cried, it made me feel so terrible." A sequence where a school teacher's collection of 78 rpm jazz records is smashed by a group of rebellious students is a key moment in the film Blackboard Jungle.

SOLUTION:
What was a known issue of using shellac to make records?