Problem: Military history of the United States:

The military history of the American side of the war involved different strategies over the years. The bombing campaigns of the Air Force were tightly controlled by the White House for political reasons, and until 1972 avoided the main Northern cities of Hanoi and Haiphong and concentrated on bombing jungle supply trails, especially the Ho Chi Minh Trail. The most controversial Army commander was William Westmoreland whose strategy involved systematic defeat of all enemy forces in the field, despite heavy American casualties that alienated public opinion back home.

What US commander's strategy caused a loss of public opinion in the UK?
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A: unanswerable

Problem: There has been an increasing gulf between the Premier League and the Football League. Since its split with the Football League, many established clubs in the Premier League have managed to distance themselves from their counterparts in lower leagues. Owing in large part to the disparity in revenue from television rights between the leagues, many newly promoted teams have found it difficult to avoid relegation in their first season in the Premier League. In every season except 200102 and 201112, at least one Premier League newcomer has been relegated back to the Football League. In 199798 all three promoted clubs were relegated at the end of the season.
Due to the disparity in television rights revenue between leagues, who struggles to avoid relegation in their Premier League first season?
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Answer: newly promoted teams

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Thuringia generally accepted the Protestant Reformation, and Roman Catholicism was suppressed as early as 1520[citation needed]; priests who remained loyal to it were driven away and churches and monasteries were largely destroyed, especially during the German Peasants' War of 1525. In Muhlhausen and elsewhere, the Anabaptists found many adherents. Thomas Muntzer, a leader of some non-peaceful groups of this sect, was active in this city. Within the borders of modern Thuringia the Roman Catholic faith only survived in the Eichsfeld district, which was ruled by the Archbishop of Mainz, and to a small degree in Erfurt and its immediate vicinity.
Who was Thomas Muntzer never able to become?
A: unanswerable

Context and question: Beyonce Giselle Knowles-Carter (/bijnse/ bee-YON-say) (born September 4, 1981) is an American singer, songwriter, record producer and actress. Born and raised in Houston, Texas, she performed in various singing and dancing competitions as a child, and rose to fame in the late 1990s as lead singer of R&B girl-group Destiny's Child. Managed by her father, Mathew Knowles, the group became one of the world's best-selling girl groups of all time. Their hiatus saw the release of Beyonce's debut album, Dangerously in Love (2003), which established her as a solo artist worldwide, earned five Grammy Awards and featured the Billboard Hot 100 number-one singles "Crazy in Love" and "Baby Boy".
When did Beyonce release Dangerously in Love?
Answer: 2003

Question: The country continued to be governed by a Junta de Salvacao Nacional until the Portuguese legislative election of 1976. It was won by the Portuguese Socialist Party (PS) and Mario Soares, its leader, became Prime Minister of the 1st Constitutional Government on 23 July. Mario Soares would be Prime Minister from 1976 to 1978 and again from 1983 to 1985. In this capacity Soares tried to resume the economic growth and development record that had been achieved before the Carnation Revolution, during the last decade of the previous regime. He initiated the process of accession to the European Economic Community (EEC) by starting accession negotiations as early as 1977.
Is there an answer to this question: What entity governed Portugal until 1976?

Answer: Junta de Salvacao Nacional

Problem: Glass:

Color in glass may be obtained by addition of electrically charged ions (or color centers) that are homogeneously distributed, and by precipitation of finely dispersed particles (such as in photochromic glasses). Ordinary soda-lime glass appears colorless to the naked eye when it is thin, although iron(II) oxide (FeO) impurities of up to 0.1 wt% produce a green tint, which can be viewed in thick pieces or with the aid of scientific instruments. Further FeO and Cr2O3 additions may be used for the production of green bottles. Sulfur, together with carbon and iron salts, is used to form iron polysulfides and produce amber glass ranging from yellowish to almost black. A glass melt can also acquire an amber color from a reducing combustion atmosphere. Manganese dioxide can be added in small amounts to remove the green tint given by iron(II) oxide. When used in art glass or studio glass is colored using closely guarded recipes that involve specific combinations of metal oxides, melting temperatures and 'cook' times. Most colored glass used in the art market is manufactured in volume by vendors who serve this market although there are some glassmakers with the ability to make their own color from raw materials.

What other additives can give glass a sulfur tint?
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A:
unanswerable