Here is a question about this article: On 27 April 1944 Sir Patrick Abercrombie's Plan for Plymouth to rebuild the bomb-damaged city was published; it called for demolition of the few remaining pre-War buildings in the city centre to make way for their replacement with wide, parallel, modern boulevards aligned eastwest linked by a northsouth avenue (Armada Way) linking the railway station with the vista of Plymouth Hoe. A peripheral road system connecting the historic Barbican on the east and Union Street to the west determines the principal form of the city centre, even following pedestrianisation of the shopping centre in the late 1980s, and continues to inform the present 'Vision for Plymouth' developed by a team led by Barcelona-based architect David MacKay in 2003 which calls for revivification of the city centre with mixed-use and residential. In suburban areas, post-War prefabs had already begun to appear by 1946, and over 1,000 permanent council houses were built each year from 195157 according to the Modernist zoned low-density garden city model advocated by Abercrombie. By 1964 over 20,000 new homes had been built, more than 13,500 of them permanent council homes and 853 built by the Admiralty. Plymouth is home to 28 parks with an average size of 45,638 square metres (491,240 sq ft). Its largest park is Central Park, with other sizeable green spaces including Victoria Park, Freedom Fields Park, Alexandra Park, Devonport Park and the Hoe.
What is the answer to this question: Who headed the team that created the 'Vision for Plymouth'?
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So... David MacKay

The problem: Answer a question about this article:
Cotton lisle is a finely-spun, tightly twisted type of cotton that is noted for being strong and durable. Lisle is composed of two strands that have each been twisted an extra twist per inch than ordinary yarns and combined to create a single thread. The yarn is spun so that it is compact and solid. This cotton is used mainly for underwear, stockings, and gloves. Colors applied to this yarn are noted for being more brilliant than colors applied to softer yarn. This type of thread was first made in the city of Lisle, France (now Lille), hence its name.
What does extra twisting of lisle thread produce?
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The answer: single thread

Problem: Please answer a question about the following article about Hokkien:
In 677 (during the reign of Emperor Gaozong), Chen Zheng (), together with his son Chen Yuanguang (), led a military expedition to pacify the rebellion in Fujian. They settled in Zhangzhou and brought the Middle Chinese phonology of northern China during the 7th century into Zhangzhou; In 885, (during the reign of Emperor Xizong of Tang), the two brothers Wang Chao () and Wang Shenzhi (), led a military expedition force to pacify the Huang Chao rebellion. They brought the Middle Chinese phonology commonly spoken in Northern China into Zhangzhou. These two waves of migrations from the north generally brought the language of northern Middle Chinese into the Fujian region. This then gradually evolved into the Zhangzhou dialect.
What was responsible for bringing the language of North middle China to the Fujian region?
A: two waves of migrations from the north

Question: Read this and answer the question

In 1528 the bishop lost secular power over both Neder- and Oversticht which included the city of Utrecht to Charles V, Holy Roman Emperor. Charles V combined the Seventeen Provinces (the current Benelux and the northern parts of France) as a personal union. This ended the prince-bishopric Utrecht, as the secular rule was now the lordship of Utrecht, with the religious power remaining with the bishop, although Charles V had gained the right to appoint new bishops. In 1559 the bishopric of Utrecht was raised to archbishopric to make it the religious center of the Northern ecclesiastical province in the Seventeen provinces.

What was the bishop of Utrecht raised to
Answer: In 1559 the bishopric of Utrecht was raised to archbishopric to make it the religious center of the Northern ecclesiastical province in the Seventeen provinces

Problem: In 1528 the bishop lost secular power over both Neder- and Oversticht which included the city of Utrecht to Charles V, Holy Roman Emperor. Charles V combined the Seventeen Provinces (the current Benelux and the northern parts of France) as a personal union. This ended the prince-bishopric Utrecht, as the secular rule was now the lordship of Utrecht, with the religious power remaining with the bishop, although Charles V had gained the right to appoint new bishops. In 1559 the bishopric of Utrecht was raised to archbishopric to make it the religious center of the Northern ecclesiastical province in the Seventeen provinces.
What did Charles V combine
The answer is the following: Charles V combined the Seventeen Provinces (the current Benelux and the northern parts of France) as a personal union

Input: Article: The economy of Russia became heavily industrialized, accounting for about two-thirds of the electricity produced in the USSR. It was, by 1961, the third largest producer of petroleum due to new discoveries in the Volga-Urals region and Siberia, trailing only the United States and Saudi Arabia. In 1974, there were 475 institutes of higher education in the republic providing education in 47 languages to some 23,941,000 students. A network of territorially-organized public-health services provided health care. After 1985, the restructuring policies of the Gorbachev administration relatively liberalised the economy, which had become stagnant since the late 1970s, with the introduction of non-state owned enterprises such as cooperatives. The effects of market policies led to the failure of many enterprises and total instability by 1990.

Now answer this question: In how many languages were students in institutions of higher education being educated in 1974?

Output:
47