Problem: Antarctica:

About 98% of Antarctica is covered by the Antarctic ice sheet, a sheet of ice averaging at least 1.6 km (1.0 mi) thick. The continent has about 90% of the world's ice (and thereby about 70% of the world's fresh water). If all of this ice were melted, sea levels would rise about 60 m (200 ft). In most of the interior of the continent, precipitation is very low, down to 20 mm (0.8 in) per year; in a few "blue ice" areas precipitation is lower than mass loss by sublimation and so the local mass balance is negative. In the dry valleys, the same effect occurs over a rock base, leading to a desiccated landscape.

What ice sheet averages at least1 kilometer thick?
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A: unanswerable


Problem: Early Asian immigrants experienced prejudice and discrimination in the forms of not having the ability to become naturalized citizens. They also struggled with many of the same school segregation laws that African Americans faced. Particularly, during World War II, Japanese Americans were interned in camps and lost their property, homes, and businesses. Discrimination against Asians began with the Chinese Exclusion Act of 1882 and then continued with the Scott Act of 1888 and the Geary Act of 1892. At the beginning of the 20th century, the United States passed the Immigration Act of 1924 to prevent Asian immigration out of fear that Asians were stealing white jobs and lowering the standard for wages. In addition, whites and non-Asians do not differentiate among the different Asian groups and perpetuate the "model minority" stereotype. According to a 2010 article by Professor Qin Zhang of Fairfield University, Asians are characterized as one dimensional in having great work ethic and valuing education, but lacking in communication skills and personality. A negative outcome of this stereotype is that Asians have been portrayed as having poor leadership and interpersonal skills. This has contributing to the "glass ceiling" phenomenon in which although there are many qualified Asian Americans, they occupy a disproportionately small number of executive positions in businesses. Furthermore, the model minority stereotype has led to resentment of Asian success and several universities and colleges have limited or have been accused of limiting Asian matriculation.
What form of discrimination did early Asian immigrants experience?
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Answer: not having the ability to become naturalized citizens


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Mexico has a large number of department stores based in Mexico, of which the most traditional are El Palacio de Hierro (High end and luxury goods) and Liverpool (Upper-middle income), with its middle income sister store Fabricas de Francia. Sanborns owns over 100 middle income level stores throughout the country. Grupo Carso operates Sears Mexico and two high-end Saks 5th Avenue stores. Other large chains are Coppel and Elektra, which offer items for the bargain price seeker. Wal-Mart operates Suburbia for lower income shoppers, along with stores under the brand names of Wal-Mart, Bodega Aurrera, and Superama.
What chains typically don't cater to bargain shoppers? 
A: unanswerable


Context and question: The Bell family home was in Cambridge, Massachusetts, until 1880 when Bell's father-in-law bought a house in Washington, D.C., and later in 1882 bought a home in the same city for Bell's family, so that they could be with him while he attended to the numerous court cases involving patent disputes.
In what year did Bell acquire a house in D.C.?
Answer: 1882


Question: On July 17, 2012, the CRTC approved the shut down of CBC's analogue transmitters, noting that "while the Commission has the discretion to refuse to revoke broadcasting licences, even on application from a licensee, it cannot direct the CBC or any other broadcaster to continue to operate its stations and transmitters." On July 31, 2012, at around 11:59 p.m. in each time zone, the remaining 620 analogue transmitters were shut down, leaving the network with 27 digital television transmitters across the country, and some transmitters operated by some affiliated stations.
Is there an answer to this question: When did the CRTC order the shutdown of the analogue transmitters?

Answer: unanswerable


Problem: United States Air Force:

USAF rank is divided between enlisted airmen, non-commissioned officers, and commissioned officers, and ranges from the enlisted Airman Basic (E-1) to the commissioned officer rank of General (O-10). Enlisted promotions are granted based on a combination of test scores, years of experience, and selection board approval while officer promotions are based on time-in-grade and a promotion selection board. Promotions among enlisted personnel and non-commissioned officers are generally designated by increasing numbers of insignia chevrons. Commissioned officer rank is designated by bars, oak leaves, a silver eagle, and anywhere from one to four stars (one to five stars in war-time).[citation needed]

What groups is the USAF rank divided amoung? 
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A:
enlisted airmen, non-commissioned officers, and commissioned officers