Problem: Jews:

Rates of interreligious marriage vary widely: In the United States, it is just under 50%, in the United Kingdom, around 53%; in France; around 30%, and in Australia and Mexico, as low as 10%. In the United States, only about a third of children from intermarriages affiliate with Jewish religious practice. The result is that most countries in the Diaspora have steady or slightly declining religiously Jewish populations as Jews continue to assimilate into the countries in which they live.[citation needed]

Where are Jews not assimilating into?
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A: unanswerable

Problem: In Lithuania Propria and in Samogitia prior to the creation of the Kingdom of Lithuania by Mindaugas, nobles were named die beste leuten in sources that were written in German language. In the Lithuanian language nobles were named ponai. The higher nobility were named 'kunigai' or 'kunigaiksciai' (dukes)i.e., loanword from Scandinavic konung. They were the established local leaders and warlords. During the development of the state they gradually became subordinated to higher dukes, and later to the King of Lithuania. Because of expansion of Lithuanian duchy into lands of Ruthenia in the mid of 14th century a new term appeared to denominate nobility bajoraifrom Ruthenian (modern Ukrainian and Belarusian languages) . This word to this day is used in Lithuanian language to name nobility, not only for own, but also for nobility of other countries.
The kunigai were subordinate to who?
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Answer: King of Lithuania.

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Obama administration began to reengage in Iraq with a series of airstrikes aimed at ISIS beginning on 10 August 2014. On 9 September 2014 President Obama said that he had the authority he needed to take action to destroy the militant group known as the Islamic State of Iraq and the Levant, citing the 2001 Authorization for Use of Military Force Against Terrorists, and thus did not require additional approval from Congress. The following day on 10 September 2014 President Barack Obama made a televised speech about ISIL, which he stated "Our objective is clear: We will degrade, and ultimately destroy, ISIL through a comprehensive and sustained counter-terrorism strategy". Obama has authorized the deployment of additional U.S. Forces into Iraq, as well as authorizing direct military operations against ISIL within Syria. On the night of 21/22 September the United States, Saudi Arabia, Bahrain, the UAE, Jordan and Qatar started air attacks against ISIS in Syria.[citation needed]
What law did Congress cite, allowing it to take action against ISIS?
A: unanswerable

Context and question: 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 can give glass a faint green tinge?
Answer: iron(II) oxide

Question: The Republic of the Congo's sparse population is concentrated in the southwestern portion of the country, leaving the vast areas of tropical jungle in the north virtually uninhabited. Thus, Congo is one of the most urbanized countries in Africa, with 70% of its total population living in a few urban areas, namely in Brazzaville, Pointe-Noire or one of the small cities or villages lining the 534-kilometre (332 mi) railway which connects the two cities. In rural areas, industrial and commercial activity has declined rapidly in recent years, leaving rural economies dependent on the government for support and subsistence.
Is there an answer to this question: What are urban economies dependent on the government for?

Answer: unanswerable

QUES: The abbey's two western towers were built between 1722 and 1745 by Nicholas Hawksmoor, constructed from Portland stone to an early example of a Gothic Revival design. Purbeck marble was used for the walls and the floors of Westminster Abbey, even though the various tombstones are made of different types of marble. Further rebuilding and restoration occurred in the 19th century under Sir George Gilbert Scott.

What were the two western towers built from?
What is the answer?
ANS:
Portland stone