Problem: Ann Arbor, Michigan:

High tech companies have located in the area since the 1930s, when International Radio Corporation introduced the first mass-produced AC/DC radio (the Kadette, in 1931) as well as the first pocket radio (the Kadette Jr., in 1933). The Argus camera company, originally a subsidiary of International Radio, manufactured cameras in Ann Arbor from 1936 to the 1960s. Current firms include Arbor Networks (provider of Internet traffic engineering and security systems), Arbortext (provider of XML-based publishing software), JSTOR (the digital scholarly journal archive), MediaSpan (provider of software and online services for the media industries), Truven Health Analytics, and ProQuest, which includes UMI. Ann Arbor Terminals manufactured a video-display terminal called the Ann Arbor Ambassador during the 1980s. Barracuda Networks, which provides networking, security, and storage products based on network appliances and cloud services, opened an engineering office in Ann Arbor in 2008 on Depot St. and recently announced it will move downtown to occupy the building previously used as the Borders headquarters.

Which company manufactured cameras in Ann Arbor from 1936 to 1960's?
---
A: Argus camera company

Problem: The major roles of construction and of services (government, communications, banking and finance, food production, entertainment, and legal services) in Brasilia's economy reflect the city's status as a governmental rather than an industrial center. Industries connected with construction, food processing, and furnishings are important, as are those associated with publishing, printing, and computer software. GDP is divided in Public Administration 54.8%, Services 28.7%, Industry 10.2%, Commerce 6.1%, Agribusiness 0.2%.
How much of Brasilia's GDP is from Services?
---
Answer: 28.7%

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Viking invasions began in the 9th century, followed by more permanent settlements, particularly along the east coast of Ireland, the west coast of modern-day Scotland and the Isle of Man. Though the Vikings were eventually neutralised in Ireland, their influence remained in the cities of Dublin, Cork, Limerick, Waterford and Wexford. England however was slowly conquered around the turn of the first millennium AD, and eventually became a feudal possession of Denmark. The relations between the descendants of Vikings in England and counterparts in Normandy, in northern France, lay at the heart of a series of events that led to the Norman conquest of England in 1066. The remnants of the Duchy of Normandy, which conquered England, remain associated to the English Crown as the Channel Islands to this day. A century later the marriage of the future Henry II of England to Eleanor of Aquitaine created the Angevin Empire, partially under the French Crown. At the invitation of a provincial king and under the authority of Pope Adrian IV (the only Englishman to be elected pope), the Angevins invaded Ireland in 1169. Though initially intended to be kept as an independent kingdom, the failure of the Irish High King to ensure the terms of the Treaty of Windsor led Henry II, as King of England, to rule as effective monarch under the title of Lord of Ireland. This title was granted to his younger son but when Henry's heir unexpectedly died the title of King of England and Lord of Ireland became entwined in one person.
In 1169, Ireland was invaded by which people?
A: Angevins

Context and question: YouTube offered the public a beta test of the site in May 2005. The first video to reach one million views was a Nike advertisement featuring Ronaldinho in September 2005. Following a $3.5 million investment from Sequoia Capital in November, the site launched officially on December 15, 2005, by which time the site was receiving 8 million views a day. The site grew rapidly, and in July 2006 the company announced that more than 65,000 new videos were being uploaded every day, and that the site was receiving 100 million video views per day. According to data published by market research company comScore, YouTube is the dominant provider of online video in the United States, with a market share of around 43% and more than 14 billion views of videos in May 2010.
What video first reached one million views in July 2005?
Answer: unanswerable

Question: The Pro Electron standard, the European Electronic Component Manufacturers Association part numbering scheme, begins with two letters: the first gives the semiconductor type (A for germanium, B for silicon, and C for materials like GaAs); the second letter denotes the intended use (A for diode, C for general-purpose transistor, etc.). A 3-digit sequence number (or one letter then 2 digits, for industrial types) follows. With early devices this indicated the case type. Suffixes may be used, with a letter (e.g. "C" often means high hFE, such as in: BC549C) or other codes may follow to show gain (e.g. BC327-25) or voltage rating (e.g. BUK854-800A). The more common prefixes are:
Is there an answer to this question: What is the most common intended use for transistors?

Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The notion of the "Land of Israel", known in Hebrew as Eretz Yisrael, has been important and sacred to the Jewish people since Biblical times. According to the Torah, God promised the land to the three Patriarchs of the Jewish people. On the basis of scripture, the period of the three Patriarchs has been placed somewhere in the early 2nd millennium BCE, and the first Kingdom of Israel was established around the 11th century BCE. Subsequent Israelite kingdoms and states ruled intermittently over the next four hundred years, and are known from various extra-biblical sources.
What is the "Land of Israel" known as in Hebrew?
A:
Eretz Yisrael