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: A brief shoot at London's City Hall was filmed on 18 April 2015, while Mendes was on location. On 17 May 2015 filming took place on the Thames in London. Stunt scenes involving Craig and Seydoux on a speedboat as well as a low flying helicopter near Westminster Bridge were shot at night, with filming temporarily closing both Westminster and Lambeth Bridges. Scenes were also shot on the river near MI6's headquarters at Vauxhall Cross. The crew returned to the river less than a week later to film scenes solely set on Westminster Bridge. The London Fire Brigade was on set to simulate rain as well as monitor smoke used for filming. Craig, Seydoux, and Waltz, as well as Harris and Fiennes, were seen being filmed. Prior to this, scenes involving Fiennes were shot at a restaurant in Covent Garden. Filming then took place in Trafalgar Square. In early June, the crew, as well as Craig, Seydoux, and Waltz, returned to the Thames for a final time to continue filming scenes previously shot on the river.

SOLUTION: Which bridges were shut down because of filming?

PROBLEM: Tito became increasingly ill over the course of 1979. During this time Vila Srna was built for his use near Morović in the event of his recovery. On 7 January and again on 11 January 1980, Tito was admitted to the Medical Centre in Ljubljana, the capital city of the SR Slovenia, with circulation problems in his legs. His left leg was amputated soon afterward due to arterial blockages and he died of gangrene at the Medical Centre Ljubljana on 4 May 1980 at 15:05, three days short of his 88th birthday. His funeral drew many world statesmen. Based on the number of attending politicians and state delegations, at the time it was the largest state funeral in history; this concentration of dignitaries would be unmatched until the funeral of Pope John Paul II in 2005 and the memorial service of Nelson Mandela in 2013. Those who attended included four kings, 31 presidents, six princes, 22 prime ministers and 47 ministers of foreign affairs. They came from both sides of the Cold War, from 128 different countries out of 154 UN members at the time.

SOLUTION: During what year did Tito become increasingly ill?

PROBLEM: Anti-aircraft warfare or counter-air defence is defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action." They include ground-and air-based weapon systems, associated sensor systems, command and control arrangements and passive measures (e.g. barrage balloons). It may be used to protect naval, ground, and air forces in any location. However, for most countries the main effort has tended to be 'homeland defence'. NATO refers to airborne air defence as counter-air and naval air defence as anti-aircraft warfare. Missile defence is an extension of air defence as are initiatives to adapt air defence to the task of intercepting any projectile in flight.

SOLUTION:
What is another term for anti-aircraft warfare?