Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In June 2009 the first major building work at the abbey for 250 years was proposed. A coronaa crown-like architectural featurewas intended to be built around the lantern over the central crossing, replacing an existing pyramidal structure dating from the 1950s. This was part of a wider 23m development of the abbey expected to be completed in 2013. On 4 August 2010 the Dean and Chapter announced that, "[a]fter a considerable amount of preliminary and exploratory work", efforts toward the construction of a corona would not be continued. In 2012, architects Panter Hudspith completed refurbishment of the 14th-century food-store originally used by the abbey's monks, converting it into a restaurant with English Oak furniture by Covent Garden-based furniture makers Luke Hughes and Company.
On what date did the Dean and Chapter announce that work would be continued?
A: unanswerable

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Wood has always been used extensively for furniture, such as chairs and beds. It is also used for tool handles and cutlery, such as chopsticks, toothpicks, and other utensils, like the wooden spoon.
What wooden utensil could you stir a pot of soup with?
A: wooden spoon

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There were four major HDTV systems tested by SMPTE in the late 1970s, and in 1979 an SMPTE study group released A Study of High Definition Television Systems:
What was released by an SMPTE study group in 1979?
A: A Study of High Definition Television Systems

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The history of phonology may be traced back to the Ashtadhyayi, the Sanskrit grammar composed by Panini in the 4th century BC. In particular the Shiva Sutras, an auxiliary text to the Ashtadhyayi, introduces what can be considered a list of the phonemes of the Sanskrit language, with a notational system for them that is used throughout the main text, which deals with matters of morphology, syntax and semantics.
What type of grammar were phenomes first a part of?
A:
unanswerable