Problem: Northwestern University:

There are traditions long associated with football games. Students growl like wildcats when the opposing team controls the ball, while simulating a paw with their hands. They will also jingle keys at the beginning of each kickoff. In the past, before the tradition was discontinued, students would throw marshmallows during games. The Clock Tower at the Rebecca Crown Center glows purple, instead of its usual white, after a winning game, thereby proclaiming the happy news. The Clock Tower remains purple until a loss or until the end of the sports season. Whereas formerly the Clock Tower was lighted only for football victories, wins for men's basketball and women's lacrosse now merit commemoration as well; important victories in other sports may also prompt an empurpling.

How long does the Clock Tower remain purple after a winning game?
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A: until a loss or until the end of the sports season


Problem: Although coal, hydrocarbons, iron ore, platinum, copper, chromium, nickel, gold and other minerals have been found, they have not been in large enough quantities to exploit. The 1991 Protocol on Environmental Protection to the Antarctic Treaty also restricts a struggle for resources. In 1998, a compromise agreement was reached to place an indefinite ban on mining, to be reviewed in 2048, further limiting economic development and exploitation. The primary economic activity is the capture and offshore trading of fish. Antarctic fisheries in 2000–01 reported landing 112,934 tonnes.
What does the 1919 Protocol on Environmental Protection to the Antarctic Treaty restrict?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
According to a 2007 BSA and International Data Corporation (IDC) study, the five countries with the highest rates of software piracy were: 1. Armenia (93%); 2. Bangladesh (92%); 3. Azerbaijan (92%); 4. Moldova (92%); and 5. Zimbabwe (91%). According to the study's results, the five countries with the lowest piracy rates were: 1. U.S. (20%); 2. Luxembourg (21%); 3. New Zealand (22%); 4. Japan (23%); and 5. Austria (25%). The 2007 report showed that the Asia-Pacific region was associated with the highest amount of loss, in terms of U.S. dollars, with $14,090,000, followed by the European Union, with a loss of $12,383,000; the lowest amount of U.S. dollars was lost in the Middle East/Africa region, where $2,446,000 was documented.
Who did a study in 2000 regarding the five countries with the highest rates of software piracy?
A: unanswerable


Context and question: St. Barthélemy has about 25 hotels, most of them with 15 rooms or fewer. The largest has 58 rooms. Hotels are classified in the traditional French manner; 3 Star, 4 Star and 4 Star Luxe. Of particular note are Eden Rock and Cheval Blanc. Hotel Le Toiny, the most expensive hotel on the island, has 12 rooms. Most places of accommodation are in the form of private villas, of which there are some 400 available to rent on the island. The island's tourism industry, though expensive, attracts 70,000 visitors every year to its luxury hotels and villas and another 130,000 people arrive by luxury boats. It also attracts a labour force from Brazil and Portugal to meet the industry needs.
What rating does Cheval Blanc have?
Answer: unanswerable


Question: In 1868, the horse-drawn tram company Compañía de Tranvías al Paso del Molino y Cerro created the first lines connecting Montevideo with Unión, the beach resort of Capurro and the industrialized and economically independent Villa del Cerro, at the time called Cosmopolis. In the same year, the Mercado del Puerto was inaugurated. In 1869, the first railway line of the company Ferrocarril Central del Uruguay was inaugurated connecting Bella Vista with the town of Las Piedras. During the same year and the next, the neighbourhoods Colón, Nuevo París and La Comercial were founded. The famous to our days Sunday market of Tristán Narvaja Street was established in Cordón in 1870. Public water supply was established in 1871. In 1878, Bulevar Circunvalación was constructed, a boulevard starting from Punta Carretas, going up to the north end of the city and then turning west to end at the beach of Capurro. It was renamed to Artigas Boulevard (its current name) in 1885. By Decree, on 8 January 1881, the area Los Pocitos was incorporated to the Novísima Ciudad (Most New City).
Is there an answer to this question: What year was Bulevar Circunvalcion constructed? 

Answer: 1878


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The success of American Idol has been described as "unparalleled in broadcasting history". The series was also said by a rival TV executive to be "the most impactful show in the history of television". It has become a recognized springboard for launching the career of many artists as bona fide stars. According to Billboard magazine, in its first ten years, "Idol has spawned 345 Billboard chart-toppers and a platoon of pop idols, including Kelly Clarkson, Carrie Underwood, Chris Daughtry, Fantasia, Ruben Studdard, Jennifer Hudson, Clay Aiken, Adam Lambert and Jordin Sparks while remaining a TV ratings juggernaut."
Who said that American Idol is "the most impactful show in the history of televsion?
A:
a rival TV executive