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.

[Q]: When interviewed for Mojo magazine the band said the most amazing sight at Live Aid was to see the audience clapping to "Radio Ga Ga". Brian May stated: "I'd never seen anything like that in my life and it wasn't calculated either. We understood our audience and played to them but that was one of those weird accidents because of the (music) video. I remember thinking 'oh great, they've picked it up' and then I thought 'this is not a Queen audience'. This is a general audience who've bought tickets before they even knew we were on the bill. And they all did it. How did they know? Nobody told them to do it."
[A]: The audience at Live Aid clapped to what Queen Song?


[Q]: Southampton was named "fittest city in the UK" in 2006 by Men's Fitness magazine. The results were based on the incidence of heart disease, the amount of junk food and alcohol consumed, and the level of gym membership. In 2007, it had slipped one place behind London, but was still ranked first when it came to the parks and green spaces available for exercise and the amount of television watched by Sotonians was the lowest in the country. Speedway racing took place at Banister Court Stadium in the pre-war era. It returned in the 1940s after WW2 and the Saints operated until the stadium closed down at the end of 1963. A training track operated in the 1950s in the Hamble area.
[A]: What magazine awarded Southampton "fittest city in the UK" in 2006?


[Q]: Solar distillation can be used to make saline or brackish water potable. The first recorded instance of this was by 16th-century Arab alchemists. A large-scale solar distillation project was first constructed in 1872 in the Chilean mining town of Las Salinas. The plant, which had solar collection area of 4,700 m2 (51,000 sq ft), could produce up to 22,700 L (5,000 imp gal; 6,000 US gal) per day and operate for 40 years. Individual still designs include single-slope, double-slope (or greenhouse type), vertical, conical, inverted absorber, multi-wick, and multiple effect. These stills can operate in passive, active, or hybrid modes. Double-slope stills are the most economical for decentralized domestic purposes, while active multiple effect units are more suitable for large-scale applications.
[A]:
In what year was a large scale solar distillation project constructed in Las Salinas?