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London is one of the leading tourist destinations in the world and in 2015 was ranked as the most visited city in the world with over 65 million visits. It is also the top city in the world by visitor cross-border spending, estimated at US$20.23 billion in 2015 Tourism is one of London's prime industries, employing the equivalent of 350,000 full-time workers in 2003, and the city accounts for 54% of all inbound visitor spend in UK. As of 2016 London is rated as the world top ranked city destination by TripAdvisor users.
As of 2003, roughly how many full time workers were employed in the tourism industry?
A: 350,000

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The parliamentary elections of 2005 aroused many accusations from opposition parties and international observers that President Emomalii Rahmon corruptly manipulates the election process and unemployment. The most recent elections, in February 2010, saw the ruling PDPT lose four seats in Parliament, yet still maintain a comfortable majority. The Organization for Security and Co-operation in Europe election observers said the 2010 polling "failed to meet many key OSCE commitments" and that "these elections failed on many basic democratic standards." The government insisted that only minor violations had occurred, which would not affect the will of the Tajik people.
The parliamentary election of 2015 aroused many what?
A: unanswerable

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In Canada, the traditional ceremony for granting assent in parliament was regularly used until the 21st century, long after it had been discontinued in the United Kingdom and other Commonwealth realms. One result, conceived as part of a string of royal duties intended to demonstrate Canada's status as an independent kingdom, was that King George VI personally assented to nine bills of the Canadian parliament during the 1939 royal tour of Canada—85 years after his great-grandmother, Queen Victoria, had last granted royal assent personally in the United Kingdom. Under the Royal Assent Act 2002, however, the alternative practice of granting assent in writing, with each house being notified separately ( the Speaker of the Senate or a representative reads to the senators the letters from the governor general regarding the written declaration of Royal Assent), was brought into force. As the act also provides, royal assent is to be signified—by the governor general, or, more often, by a deputy, usually a Justice of the Supreme Court, at least twice each calendar year: for the first appropriation measure and for at least one other act, usually the first non-appropriation measure passed. However, the act provides that a grant of royal assent is not rendered invalid by a failure to employ the traditional ceremony where required.
Why was King George VI's personal assent in 1939 noteworthy?
A: 85 years after his great-grandmother, Queen Victoria, had last granted royal assent personally

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Even during the war, Eritrea developed its transportation infrastructure by asphalting new roads, improving its ports, and repairing war-damaged roads and bridges as a part of the Warsay Yika'alo Program. The most significant of these projects was the construction of a coastal highway of more than 500 km connecting Massawa with Asseb, as well as the rehabilitation of the Eritrean Railway. The rail line has been restored between the port of Massawa and the capital Asmara, although services are sporadic. Steam locomotives are sometimes used for groups of enthusiasts.
How long was the coastal highway between Massawa and Asseb?
A:
more than 500 km