Problem: Printed circuit board:

The panel is eventually broken apart into individual PCBs; this is called depaneling. Separating the individual PCBs is frequently aided by drilling or routing perforations along the boundaries of the individual circuits, much like a sheet of postage stamps. Another method, which takes less space, is to cut V-shaped grooves across the full dimension of the panel. The individual PCBs can then be broken apart along this line of weakness. Today depaneling is often done by lasers which cut the board with no contact. Laser panelization reduces stress on the fragile circuits.

Individual PCBs can be merged along what line?
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A: unanswerable

Problem: Dog behavior is the internally coordinated responses (actions or inactions) of the domestic dog (individuals or groups) to internal and/or external stimuli. As the oldest domesticated species, with estimates ranging from 9,00030,000 years BCE, the minds of dogs inevitably have been shaped by millennia of contact with humans. As a result of this physical and social evolution, dogs, more than any other species, have acquired the ability to understand and communicate with humans and they are uniquely attuned to our behaviors. Behavioral scientists have uncovered a surprising set of social-cognitive abilities in the otherwise humble domestic dog. These abilities are not possessed by the dog's closest canine relatives nor by other highly intelligent mammals such as great apes. Rather, these skills parallel some of the social-cognitive skills of human children.
Dogs are very well attuned to what other species' behaviors?
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Answer: humans.

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Since the Spanish transition to democracy (19751982), Catalan has been institutionalizated as an official language, language of education, and language of mass media; all of which have contributed to its increased prestige. In Catalonia, there is no parallel of a large, bilingual, European, non-state speech community. The teaching of Catalan is mandatory in all schools, but it is possible to use Spanish for studying in the public education system of Catalonia in two situations, if the teacher assigned to a class chooses to use Spanish, or during the learning process of one or some recently arrived students. There is also some intergenerational shift towards Catalan.
Besides as an official and an educational language, where else is Catalan the prefered language?
A: mass media

Context and question: The inhabitants of the British Isles have been drinking ale since the Bronze Age, but it was with the arrival of the Roman Empire in its shores in the 1st Century, and the construction of the Roman road networks that the first inns, called tabernae, in which travellers could obtain refreshment began to appear. After the departure of Roman authority in the 5th Century and the fall of the Romano-British kingdoms, the Anglo-Saxons established alehouses that grew out of domestic dwellings, the Anglo-Saxon alewife would put a green bush up on a pole to let people know her brew was ready. These alehouses quickly evolved into meeting houses for the folk to socially congregate, gossip and arrange mutual help within their communities. Herein lies the origin of the modern public house, or "Pub" as it is colloquially called in England. They rapidly spread across the Kingdom, becoming so commonplace that in 965 King Edgar decreed that there should be no more than one alehouse per village.
In what century did the Romans arrive in Britain?
Answer: the 1st Century

Question: Countering Krugman, Peter J. Wallison wrote: "It is not true that every bubbleeven a large bubblehas the potential to cause a financial crisis when it deflates." Wallison notes that other developed countries had "large bubbles during the 19972007 period" but "the losses associated with mortgage delinquencies and defaults when these bubbles deflated were far lower than the losses suffered in the United States when the 19972007 [bubble] deflated." According to Wallison, the reason the U.S. residential housing bubble (as opposed to other types of bubbles) led to financial crisis was that it was supported by a huge number of substandard loans generally with low or no downpayments.
Is there an answer to this question: Peter J. Wallison's conclusions regarding the financial crisis are not in agreement with this economist's views?

Answer: Krugman

Some linguists restrict the double-dot subscript to murmured sonorants, such as vowels and nasals, which are murmured throughout their duration, and use the superscript hook-aitch for the breathy-voiced release of obstruents.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): All linguists restrict the double-dot subscript to what?
Ah, so..
unanswerable