Problem: Internet service provider:

For customers with more demanding requirements (such as medium-to-large businesses, or other ISPs) can use higher-speed DSL (such as single-pair high-speed digital subscriber line), Ethernet, metropolitan Ethernet, gigabit Ethernet, Frame Relay, ISDN Primary Rate Interface, ATM (Asynchronous Transfer Mode) and synchronous optical networking (SONET).

What is available to customers with less demanding requirements?
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A: unanswerable

Problem: Many species of birds are economically important. Domesticated and undomesticated birds (poultry and game) are important sources of eggs, meat, and feathers. Songbirds, parrots, and other species are popular as pets. Guano (bird excrement) is harvested for use as a fertilizer. Birds prominently figure throughout human culture. About 120130 species have become extinct due to human activity since the 17th century, and hundreds more before then. Human activity threatens about 1,200 bird species with extinction, though efforts are underway to protect them. Recreational birdwatching is an important part of the ecotourism industry.
Which birds are popular as pets?
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Answer: Songbirds, parrots

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The road to Yorktown and America's independence from Great Britain led through North Carolina. As the British Army moved north from victories in Charleston and Camden, South Carolina, the Southern Division of the Continental Army and local militia prepared to meet them. Following General Daniel Morgan's victory over the British Cavalry Commander Banastre Tarleton at the Battle of Cowpens on January 17, 1781, southern commander Nathanael Greene led British Lord Charles Cornwallis across the heartland of North Carolina, and away from the latter's base of supply in Charleston, South Carolina. This campaign is known as "The Race to the Dan" or "The Race for the River."
Who lost the battle of Cowpens?
A: the British Cavalry

Context and question: Airports are divided into landside and airside areas. Landside areas include parking lots, public transportation train stations and access roads. Airside areas include all areas accessible to aircraft, including runways, taxiways and aprons. Access from landside areas to airside areas is tightly controlled at most airports. Passengers on commercial flights access airside areas through terminals, where they can purchase tickets, clear security check, or claim luggage and board aircraft through gates. The waiting areas which provide passenger access to aircraft are typically called concourses, although this term is often used interchangeably with terminal.
What do landside areas include?
Answer: parking lots, public transportation train stations and access roads

Question: Alaska regularly supports Republicans in presidential elections and has done so since statehood. Republicans have won the state's electoral college votes in all but one election that it has participated in (1964). No state has voted for a Democratic presidential candidate fewer times. Alaska was carried by Democratic nominee Lyndon B. Johnson during his landslide election in 1964, while the 1960 and 1968 elections were close. Since 1972, however, Republicans have carried the state by large margins. In 2008, Republican John McCain defeated Democrat Barack Obama in Alaska, 59.49% to 37.83%. McCain's running mate was Sarah Palin, the state's governor and the first Alaskan on a major party ticket. Obama lost Alaska again in 2012, but he captured 40% of the state's vote in that election, making him the first Democrat to do so since 1968.
Is there an answer to this question: Which political party does Alaska generally not support?

Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
A reward will be paid to any person who furnishes information which leads to an arrest, conviction, or revocation of a license, so long as they are not a local, state, or federal employee in the performance of official duties. The Secretary may also provide reasonable and necessary costs incurred for the care of fish, wildlife, and forest service or plant pending the violation caused by the criminal. If the balance ever exceeds $500,000 the Secretary of the Treasury is required to deposit an amount equal to the excess into the cooperative endangered species conservation fund.
Costs over what balance lead to the Secretary of the Treasury depositing money into the cooperative endangered species conservation fund?
A:
$500,000