Problem: Detroit:

The region grew based on the lucrative fur trade, in which numerous Native American people had important roles. Detroit's city flag reflects its French colonial heritage. (See Flag of Detroit). Descendants of the earliest French and French Canadian settlers formed a cohesive community who gradually were replaced as the dominant population after more Anglo-American settlers came to the area in the early 19th century. Living along the shores of Lakes St. Clair, and south to Monroe and downriver suburbs, the French Canadians of Detroit, also known as Muskrat French, remain a subculture in the region today.

By which group were the original French and French Canadians replaced?
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A: Anglo-American settlers


Problem: The Aeneid appears to have been a great success. Virgil is said to have recited Books 2, 4, and 6 to Augustus; and Book 6 apparently caused Augustus' sister Octavia to faint. Although the truth of this claim is subject to scholarly scepticism, it has served as a basis for later art, such as Jean-Baptiste Wicar's Virgil Reading the Aeneid.
What book of the Aeneid is the longest?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Groups are also applied in many other mathematical areas. Mathematical objects are often examined by associating groups to them and studying the properties of the corresponding groups. For example, Henri Poincaré founded what is now called algebraic topology by introducing the fundamental group. By means of this connection, topological properties such as proximity and continuity translate into properties of groups.i[›] For example, elements of the fundamental group are represented by loops. The second image at the right shows some loops in a plane minus a point. The blue loop is considered null-homotopic (and thus irrelevant), because it can be continuously shrunk to a point. The presence of the hole prevents the orange loop from being shrunk to a point. The fundamental group of the plane with a point deleted turns out to be infinite cyclic, generated by the orange loop (or any other loop winding once around the hole). This way, the fundamental group detects the hole.
What topological properties translate into properties of groups?
A: proximity and continuity


Context and question: In March 1968, CBS and Sony formed CBS/Sony Records, a Japanese business joint venture. With Sony being one of the developers behind the compact disc digital music media, a compact disc production plant was constructed in Japan under the joint venture, allowing CBS to begin supplying some of the first compact disc releases for the American market in 1983.
ABC supplied some of the first compact disc releases in what year?
Answer: unanswerable


Question: The introduction of the guided missile resulted in a significant shift in anti-aircraft strategy. Although Germany had been desperate to introduce anti-aircraft missile systems, none became operational during World War II. Following several years of post-war development, however, these systems began to mature into viable weapons systems. The US started an upgrade of their defences using the Nike Ajax missile, and soon the larger anti-aircraft guns disappeared. The same thing occurred in the USSR after the introduction of their SA-2 Guideline systems.
Is there an answer to this question: The introduction of what caused the larger anti-aircraft guns to disappear in the USSR?

Answer: SA-2 Guideline systems


QUES: On October 1, 1989, a peaceful demonstration of 10,000 to 15,000 people was violently dispersed by the militia in front of Lviv's Druzhba Stadium, where a concert celebrating the Soviet "reunification" of Ukrainian lands was being held. On October 10, Ivano-Frankivsk was the site of a pre-election protest attended by 30,000 people. On October 15, several thousand people gathered in Chervonohrad, Chernivtsi, Rivne, and Zhytomyr; 500 in Dnipropetrovsk; and 30,000 in Lviv to protest the election law. On October 20, faithful and clergy of the Ukrainian Autocephalous Orthodox Church participated in a synod in Lviv, the first since its forced liquidation in the 1930s.

Who attacked the protest?
What is the answer?
ANS:
militia