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Namibia's primary tourism related governing body, the Namibia Tourism Board (NTB), was established by an Act of Parliament: the Namibia Tourism Board Act, 2000 (Act 21 of 2000). Its primary objectives are to regulate the tourism industry and to market Namibia as a tourist destination. There are also a number of trade associations that represent the tourism sector in Namibia, such as the Federation of Namibia Tourism Associations (the umbrella body for all tourism associations in Namibia), the Hospitality Association of Namibia, the Association of Namibian Travel Agents, Car Rental Association of Namibia and the Tour and Safari Association of Namibia.
In what year was the Federation of Namibia Tourism Associations founded?
A: unanswerable

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Two of Chopin's long-standing pupils, Karol Mikuli (18211897) and Georges Mathias, were themselves piano teachers and passed on details of his playing to their own students, some of whom (such as Raoul Koczalski) were to make recordings of his music. Other pianists and composers influenced by Chopin's style include Louis Moreau Gottschalk, Edouard Wolff (18161880) and Pierre Zimmermann. Debussy dedicated his own 1915 piano Etudes to the memory of Chopin; he frequently played Chopin's music during his studies at the Paris Conservatoire, and undertook the editing of Chopin's piano music for the publisher Jacques Durand.
For what publisher to Debussy edit Chopin's music for?
A: Jacques Durand

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From 1989 through 1996, the total area of the US was listed as 9,372,610 km2 (3,618,780 sq mi) (land + inland water only). The listed total area changed to 9,629,091 km2 (3,717,813 sq mi) in 1997 (Great Lakes area and coastal waters added), to 9,631,418 km2 (3,718,711 sq mi) in 2004, to 9,631,420 km2 (3,718,710 sq mi) in 2006, and to 9,826,630 km2 (3,794,080 sq mi) in 2007 (territorial waters added). Currently, the CIA World Factbook gives 9,826,675 km2 (3,794,100 sq mi), the United Nations Statistics Division gives 9,629,091 km2 (3,717,813 sq mi), and the Encyclopdia Britannica gives 9,522,055 km2 (3,676,486 sq mi)(Great Lakes area included but not coastal waters). These source consider only the 50 states and the Federal District, and exclude overseas territories.
The total square miles of land only in the United States was 9,372,610 km during what time period?
A: unanswerable

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Static analysis techniques for software verification can be applied also in the scenario of query languages. In particular, the *Abstract interpretation framework has been extended to the field of query languages for relational databases as a way to support sound approximation techniques. The semantics of query languages can be tuned according to suitable abstractions of the concrete domain of data. The abstraction of relational database system has many interesting applications, in particular, for security purposes, such as fine grained access control, watermarking, etc.
Why is static analysis impossible with query languages?
A:
unanswerable