Problem: Annelid:

The brain generally forms a ring round the pharynx (throat), consisting of a pair of ganglia (local control centers) above and in front of the pharynx, linked by nerve cords either side of the pharynx to another pair of ganglia just below and behind it. The brains of polychaetes are generally in the prostomium, while those of clitellates are in the peristomium or sometimes the first segment behind the peristomium. In some very mobile and active polychaetes the brain is enlarged and more complex, with visible hindbrain, midbrain and forebrain sections. The rest of the central nervous system is generally "ladder-like", consisting of a pair of nerve cords that run through the bottom part of the body and have in each segment paired ganglia linked by a transverse connection. From each segmental ganglion a branching system of local nerves runs into the body wall and then encircles the body. However, in most polychaetes the two main nerve cords are fused, and in the tube-dwelling genus Owenia the single nerve chord has no ganglia and is located in the epidermis.

Where are polychaetes' bodies?
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A: unanswerable

Problem: Just as the navigational approach would require programs to loop in order to collect records, the relational approach would require loops to collect information about any one record. Codd's solution to the necessary looping was a set-oriented language, a suggestion that would later spawn the ubiquitous SQL. Using a branch of mathematics known as tuple calculus, he demonstrated that such a system could support all the operations of normal databases (inserting, updating etc.) as well as providing a simple system for finding and returning sets of data in a single operation.
What is used to solve the problem of looping?
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Answer: a set-oriented language

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Furthermore, evidence exists that hunting may have been one of the multiple environmental factors leading to extinctions of the holocene megafauna and their replacement by smaller herbivores. North American megafauna extinction was coincidental with the Younger Dryas impact event, possibly making hunting a less critical factor in prehistoric species loss than had been previously thought. However, in other locations such as Australia, humans are thought to have played a very significant role in the extinction of the Australian megafauna that was widespread prior to human occupation.
What did human occupation lead Younger Dryas to be replaced with?
A: unanswerable

Context and question: At this time, Hal B. Wallis, who had latterly worked as a major producer at Paramount, moved over to Universal, where he produced several films, among them a lavish version of Maxwell Anderson's Anne of the Thousand Days (1969), and the equally lavish Mary, Queen of Scots (1971). Though neither could claim to be a big financial hit, both films received Academy Award nominations, and Anne was nominated for Best Picture, Best Actor (Richard Burton), Best Actress (Genevieve Bujold), and Best Supporting Actor (Anthony Quayle). Wallis retired from Universal after making the film Rooster Cogburn (1975), a sequel to True Grit (1969), which Wallis had produced at Paramount. Rooster Cogburn co-starred John Wayne, reprising his Oscar-winning role from the earlier film, and Katharine Hepburn, their only film together. The film was only a moderate success.
What company did B. Hal Wallis work at before Universal?
Answer: unanswerable

Question: In early February, the South Korean 11th Division ran the operation to destroy the guerrillas and their sympathizer citizens in Southern Korea. During the operation, the division and police conducted the Geochang massacre and Sancheong-Hamyang massacre. In mid-February, the PVA counterattacked with the Fourth Phase Offensive and achieved initial victory at Hoengseong. But the offensive was soon blunted by the IX Corps positions at Chipyong-ni in the center. Units of the U.S. 2nd Infantry Division and the French Battalion fought a short but desperate battle that broke the attack's momentum. The battle is sometimes known as the Gettysburg of the Korean War. The battle saw 5,600 Korean, American and French troops defeat a numerically superior Chinese force. Surrounded on all sides, the U.S. 2nd Infantry Division Warrior Division's 23rd Regimental Combat Team with an attached French Battalion was hemmed in by more than 25,000 Chinese Communist forces. United Nations forces had previously retreated in the face of large Communist forces instead of getting cut off, but this time they stood and fought at odds of roughly 15 to 1.
Is there an answer to this question: How many PVA soldiers fought in this battle and lost?

Answer: more than 25,000

Question: The team worked on a Wii control scheme, adapting camera control and the fighting mechanics to the new interface. A prototype was created that used a swinging gesture to control the sword from a first-person viewpoint, but was unable to show the variety of Link's movements. When the third-person view was restored, Aonuma thought it felt strange to swing the Wii Remote with the right hand to control the sword in Link's left hand, so the entire Wii version map was mirrored.[p] Details about Wii controls began to surface in December 2005 when British publication NGC Magazine claimed that when a GameCube copy of Twilight Princess was played on the Revolution, it would give the player the option of using the Revolution controller. Miyamoto confirmed the Revolution controller-functionality in an interview with Nintendo of Europe and Time reported this soon after. However, support for the Wii controller did not make it into the GameCube release. At E3 2006, Nintendo announced that both versions would be available at the Wii launch, and had a playable version of Twilight Princess for the Wii.[p] Later, the GameCube release was pushed back to a month after the launch of the Wii.
Is there an answer to this question: How long was the Wii version of Twilight Princess delayed?

Answer:
unanswerable