Problem: Database:

The relational model also allowed the content of the database to evolve without constant rewriting of links and pointers. The relational part comes from entities referencing other entities in what is known as one-to-many relationship, like a traditional hierarchical model, and many-to-many relationship, like a navigational (network) model. Thus, a relational model can express both hierarchical and navigational models, as well as its native tabular model, allowing for pure or combined modeling in terms of these three models, as the application requires.

What is the relationship called in a hierarchical model?
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A: one-to-many

Problem: During the Permian all the Earth's major land masses, except portions of East Asia, were collected into a single supercontinent known as Pangaea. Pangaea straddled the equator and extended toward the poles, with a corresponding effect on ocean currents in the single great ocean (Panthalassa, the universal sea), and the Paleo-Tethys Ocean, a large ocean that was between Asia and Gondwana. The Cimmeria continent rifted away from Gondwana and drifted north to Laurasia, causing the Paleo-Tethys to shrink. A new ocean was growing on its southern end, the Tethys Ocean, an ocean that would dominate much of the Mesozoic Era. Large continental landmasses create climates with extreme variations of heat and cold ("continental climate") and monsoon conditions with highly seasonal rainfall patterns. Deserts seem to have been widespread on Pangaea.
The moving of which continent contributed to the decrease in size of the Paleo-Tethys?
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Answer: Cimmeria

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored.
What happened to the BeiDou-1D satellite that needed to be repaired?
A: a control system malfunction

Context and question: Under the doctrine of Erie Railroad Co. v. Tompkins (1938), there is no general federal common law. Although federal courts can create federal common law in the form of case law, such law must be linked one way or another to the interpretation of a particular federal constitutional provision, statute, or regulation (which in turn was enacted as part of the Constitution or after). Federal courts lack the plenary power possessed by state courts to simply make up law, which the latter are able to do in the absence of constitutional or statutory provisions replacing the common law. Only in a few narrow limited areas, like maritime law, has the Constitution expressly authorized the continuation of English common law at the federal level (meaning that in those areas federal courts can continue to make law as they see fit, subject to the limitations of stare decisis).
When was the doctrine of Erie Railroad Co. v. Tompkins put into effect?
Answer: 1938

Question: Domestically, Menzies presided over a fairly regulated economy in which utilities were publicly owned, and commercial activity was highly regulated through centralised wage-fixing and high tariff protection. Liberal leaders from Menzies to Malcolm Fraser generally maintained Australia's high tariff levels. At that time the Liberals' coalition partner, the Country Party, the older of the two in the coalition (now known as the "National Party"), had considerable influence over the government's economic policies. It was not until the late 1970s and through their period out of power federally in the 1980s that the party came to be influenced by what was known as the "New Right" a conservative liberal group who advocated market deregulation, privatisation of public utilities, reductions in the size of government programs and tax cuts.
Is there an answer to this question: When did the Malcolm Fraser come to be influenced by the New Right?

Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
On November 4, 1979, a group of students seized the United States Embassy and took the embassy with 52 personnel and citizens hostage, after the United States refused to return Mohammad Reza Pahlavi to Iran to face trial in the court of the new regime. Attempts by the Jimmy Carter administration to negotiate for the release of the hostages, and a failed rescue attempt, helped force Carter out of office and brought Ronald Reagan to power. On Jimmy Carter's final day in office, the last hostages were finally set free as a result of the Algiers Accords.
ALl of the hostages were completely freed as the result of what treaty?
A:
Algiers Accords