Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
At the end of the 12th century, Europe was divided into a multitude of city states and kingdoms. The area encompassing modern Germany, southern Denmark, the Netherlands, Belgium, Luxembourg, Switzerland, Austria, Slovakia, Czech Republic and much of northern Italy (excluding Venice and Papal State) was nominally part of the Holy Roman Empire, but local rulers exercised considerable autonomy. France, Denmark, Poland, Hungary, Portugal, Scotland, Castile, Aragon, Navarre, Sicily and Cyprus were independent kingdoms, as was the Angevin Empire, whose Plantagenet kings ruled England and large domains in what was to become modern France. Norway came under the influence of England, while the other Scandinavian countries and Poland were influenced by trading contacts with the Hanseatic League. Angevin kings brought the Gothic tradition from France to Southern Italy, while Lusignan kings introduced French Gothic architecture to Cyprus.
What modern country contains regions in which Plantagenet kings controlled small domains?
A: unanswerable

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The High Middle Ages was a period of great religious movements. Besides the Crusades and monastic reforms, people sought to participate in new forms of religious life. New monastic orders were founded, including the Carthusians and the Cistercians. The latter especially expanded rapidly in their early years under the guidance of Bernard of Clairvaux (d. 1153). These new orders were formed in response to the feeling of the laity that Benedictine monasticism no longer met the needs of the laymen, who along with those wishing to enter the religious life wanted a return to the simpler hermetical monasticism of early Christianity, or to live an Apostolic life. Religious pilgrimages were also encouraged. Old pilgrimage sites such as Rome, Jerusalem, and Compostela received increasing numbers of visitors, and new sites such as Monte Gargano and Bari rose to prominence.
Along with the Cistercians, what new monastic order was founded in the High Middle Ages?
A: Carthusians

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Sometimes circumstances such as a good breeding season followed by a food source failure the following year lead to irruptions in which large numbers of a species move far beyond the normal range. Bohemian waxwings Bombycilla garrulus well show this unpredictable variation in annual numbers, with five major arrivals in Britain during the nineteenth century, but 18 between the years 1937 and 2000. Red crossbills Loxia curvirostra too are irruptive, with widespread invasions across England noted in 1251, 1593, 1757, and 1791.
How many times did Bohemian waxwings come to Britain in the nineteeth century?
A: five

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Matte solder is usually fused to provide a better bonding surface or stripped to bare copper. Treatments, such as benzimidazolethiol, prevent surface oxidation of bare copper. The places to which components will be mounted are typically plated, because untreated bare copper oxidizes quickly, and therefore is not readily solderable. Traditionally, any exposed copper was coated with solder by hot air solder levelling (HASL). The HASL finish prevents oxidation from the underlying copper, thereby guaranteeing a solderable surface. This solder was a tin-lead alloy, however new solder compounds are now used to achieve compliance with the RoHS directive in the EU and US, which restricts the use of lead. One of these lead-free compounds is SN100CL, made up of 99.3% tin, 0.7% copper, 0.05% nickel, and a nominal of 60ppm germanium.
Traditionally, any exposed silver was coated with what?
A:
unanswerable