Problem: Transistor:

In 1948, the point-contact transistor was independently invented by German physicists Herbert Mataré and Heinrich Welker while working at the Compagnie des Freins et Signaux, a Westinghouse subsidiary located in Paris. Mataré had previous experience in developing crystal rectifiers from silicon and germanium in the German radar effort during World War II. Using this knowledge, he began researching the phenomenon of "interference" in 1947. By June 1948, witnessing currents flowing through point-contacts, Mataré produced consistent results using samples of germanium produced by Welker, similar to what Bardeen and Brattain had accomplished earlier in December 1947. Realizing that Bell Labs' scientists had already invented the transistor before them, the company rushed to get its "transistron" into production for amplified use in France's telephone network.

Where were Matare and Welker working when inventing the point-contact transistor?
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A: Compagnie des Freins et Signaux


Problem: On October 11, 1944, the Tuvan People's Republic joined the Russian SFSR as the Tuvan Autonomous Oblast, in 1961 becoming an Autonomous Soviet Socialist Republic.
What wasn't renamed to Tuvan Autonomous Oblast?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In recent years, the nightclubs on West 27th Street have succumbed to stiff competition from Manhattan's Meatpacking District about fifteen blocks south, and other venues in downtown Manhattan.
What direction is Manhattan's Meatpacking District from West 27th Street?
A: south


Context and question: The Russians eventually offered battle outside Moscow on 7 September: the Battle of Borodino resulted in approximately 44,000 Russian and 35,000 French dead, wounded or captured, and may have been the bloodiest day of battle in history up to that point in time. Although the French had won, the Russian army had accepted, and withstood, the major battle Napoleon had hoped would be decisive. Napoleon's own account was: "The most terrible of all my battles was the one before Moscow. The French showed themselves to be worthy of victory, but the Russians showed themselves worthy of being invincible."
 Around how many French were killed, injured, or taken prisoner in the Battle of Borodino?
Answer: 35,000


Question: The shelter of the early people changed dramatically from the paleolithic to the neolithic era. In the paleolithic, people did not normally live in permanent constructions. In the neolithic, mud brick houses started appearing that were coated with plaster. The growth of agriculture made permanent houses possible. Doorways were made on the roof, with ladders positioned both on the inside and outside of the houses. The roof was supported by beams from the inside. The rough ground was covered by platforms, mats, and skins on which residents slept. Stilt-houses settlements were common in the Alpine and Pianura Padana (Terramare) region. Remains have been found at the Ljubljana Marshes in Slovenia and at the Mondsee and Attersee lakes in Upper Austria, for example.
Is there an answer to this question: What lifestyle element changed significantly from the paleolithic to the neolithic era?

Answer: shelter


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The reasons for the strong Swedish dominance are as explained by Richard Sparks manifold; suffice to say here that there is a long-standing tradition, an unsusually large proportion of the populations (5% is often cited) regularly sing in choirs, the Swedish choral director Eric Ericson had an enormous impact on a cappella choral development not only in Sweden but around the world, and finally there are a large number of very popular primary and secondary schools (music schools) with high admission standards based on auditions that combine a rigid academic regimen with high level choral singing on every school day, a system that started with Adolf Fredrik's Music School in Stockholm in 1939 but has spread over the country.
What is the name of the Swedish man known for being a large influence to a cappella across the world?
A:
Eric Ericson