The problem: Answer a question about this article:
Child labour is still common in many parts of the world. Estimates for child labour vary. It ranges between 250 and 304 million, if children aged 517 involved in any economic activity are counted. If light occasional work is excluded, ILO estimates there were 153 million child labourers aged 514 worldwide in 2008. This is about 20 million less than ILO estimate for child labourers in 2004. Some 60 percent of the child labour was involved in agricultural activities such as farming, dairy, fisheries and forestry. Another 25 percent of child labourers were in service activities such as retail, hawking goods, restaurants, load and transfer of goods, storage, picking and recycling trash, polishing shoes, domestic help, and other services. The remaining 15 percent laboured in assembly and manufacturing in informal economy, home-based enterprises, factories, mines, packaging salt, operating machinery, and such operations. Two out of three child workers work alongside their parents, in unpaid family work situations. Some children work as guides for tourists, sometimes combined with bringing in business for shops and restaurants. Child labour predominantly occurs in the rural areas (70%) and informal urban sector (26%).
Does child labour exist in the 21st century?
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The answer: Child labour is still common

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Gearless traction machines are low-speed (low-RPM), high-torque electric motors powered either by AC or DC. In this case, the drive sheave is directly attached to the end of the motor. Gearless traction elevators can reach speeds of up to 20 m/s (4,000 ft/min), A brake is mounted between the motor and gearbox or between the motor and drive sheave or at the end of the drive sheave to hold the elevator stationary at a floor. This brake is usually an external drum type and is actuated by spring force and held open electrically; a power failure will cause the brake to engage and prevent the elevator from falling (see inherent safety and safety engineering). But it can also be some form of disc type like 1 or more calipers over a disc in one end of the motor shaft or drive sheave which is used in high speed, high rise and large capacity elevators with machine rooms(an exception is the Kone MonoSpace's EcoDisc which is not high speed, high rise and large capacity and is machine room less but it uses the same design as is a thinner version of a conventional gearless traction machine) for breaking power, compactness and redundancy(assuming there's at least 2 calipers on the disc), or 1 or more disc brakes with a single caliper at one end of the motor shaft or drive sheave which is used in machine room less elevators for compactness, breaking power, and redundancy(assuming there's 2 brakes or more).
What motivates an external drum brake held open electrically?
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The answer: spring force

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In the 1990s, marked by the liberalization of language development and mother tongue movement in Taiwan, Taiwanese Hokkien had undergone a fast pace in its development. In 1993, Taiwan became the first region in the world to implement the teaching of Taiwanese Hokkien in Taiwanese schools. In 2001, the local Taiwanese language program was further extended to all schools in Taiwan, and Taiwanese Hokkien became one of the compulsory local Taiwanese languages to be learned in schools. The mother tongue movement in Taiwan even influenced Xiamen (Amoy) to the point that in 2010, Xiamen also began to implement the teaching of Hokkien dialect in its schools. In 2007, the Ministry of Education in Taiwan also completed the standardization of Chinese characters used for writing Hokkien and developed Tai-lo as the standard Hokkien pronunciation and romanization guide. A number of universities in Taiwan also offer Hokkien degree courses for training Hokkien-fluent talents to work for the Hokkien media industry and education. Taiwan also has its own Hokkien literary and cultural circles whereby Hokkien poets and writers compose poetry or literature in Hokkien on a regular basis.
What year did the Ministry of Education develope tai-lo?
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The answer: 2007

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The earliest known chemical evidence of barley beer dates to circa 35003100 BC from the site of Godin Tepe in the Zagros Mountains of western Iran. Some of the earliest Sumerian writings contain references to beer; examples include a prayer to the goddess Ninkasi, known as "The Hymn to Ninkasi", which served as both a prayer as well as a method of remembering the recipe for beer in a culture with few literate people, and the ancient advice (Fill your belly. Day and night make merry) to Gilgamesh, recorded in the Epic of Gilgamesh, by the ale-wife Siduri may, at least in part, have referred to the consumption of beer. The Ebla tablets, discovered in 1974 in Ebla, Syria, show that beer was produced in the city in 2500 BC. A fermented beverage using rice and fruit was made in China around 7000 BC. Unlike sake, mould was not used to saccharify the rice (amylolytic fermentation); the rice was probably prepared for fermentation by mastication or malting.
What year were the elbow tablet first discovered?
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The answer:
1974