Input: Railway electrification system
Motors have very little room for electrical insulation so they generally have low voltage ratings. Because transformers (prior to the development of power electronics) cannot step down DC voltages, trains were supplied with a relatively low DC voltage that the motors can use directly. The most common DC voltages are listed in the previous section. Third (and fourth) rail systems almost always use voltages below 1 kV for safety reasons while overhead wires usually use higher voltages for efficiency. ("Low" voltage is relative; even 600 V can be instantly lethal when touched.)

Why 1kV voltage is almost always used by rail systems?
Output: safety reasons

Input: Article: Haruspicy was also used in public cult, under the supervision of the augur or presiding magistrate. The haruspices divined the will of the gods through examination of entrails after sacrifice, particularly the liver. They also interpreted omens, prodigies and portents, and formulated their expiation. Most Roman authors describe haruspicy as an ancient, ethnically Etruscan "outsider" religious profession, separate from Rome's internal and largely unpaid priestly hierarchy, essential but never quite respectable. During the mid-to-late Republic, the reformist Gaius Gracchus, the populist politician-general Gaius Marius and his antagonist Sulla, and the "notorious Verres" justified their very different policies by the divinely inspired utterances of private diviners. The senate and armies used the public haruspices: at some time during the late Republic, the Senate decreed that Roman boys of noble family be sent to Etruria for training in haruspicy and divination. Being of independent means, they would be better motivated to maintain a pure, religious practice for the public good. The motives of private haruspices especially females and their clients were officially suspect: none of this seems to have troubled Marius, who employed a Syrian prophetess.

Now answer this question: Which of the entrails was especially important to augury?

Output: liver

Article: Of the new eastern religions introduced into the Greek world, the most successful was Christianity. From the early centuries of the Common Era, the Greeks identified as Romaioi ("Romans"), by that time the name 'Hellenes' denoted pagans. While ethnic distinctions still existed in the Roman Empire, they became secondary to religious considerations and the renewed empire used Christianity as a tool to support its cohesion and promoted a robust Roman national identity. Concurrently the secular, urban civilization of late antiquity survived in the Eastern Mediterranean along with Greco-Roman educational system, although it was from Christianity that the culture's essential values were drawn.

Question: What imperative value was extolled from the Christian community to the Roman world ?
Ans: Greco-Roman educational system, although it was from Christianity that the culture's essential values were drawn.

Here is a question about this article: The new structure is administered by a Metropolitan Council of 210 members, not directly elected, but chosen by the councils of the member Communes. By 2020 its basic competencies will include urban planning, housing, and protection of the environment. The first president of the metropolitan council, Patrick Ollier, a Republican and the mayor of the town of Rueil-Malmaison, was elected on January 22, 2016. Though the Metropole has a population of nearly seven million persons and accounts for 25 percent of the GDP of France, it has a very small budget; just 65 million Euros, compared with eight billion Euros for the City of Paris.
What is the answer to this question: What is the budget for Metropole?
****
So... 65 million Euros

The problem: Answer a question about this article:
A series of new editors-in-chief oversaw the company during another slow time for the industry. Once again, Marvel attempted to diversify, and with the updating of the Comics Code achieved moderate to strong success with titles themed to horror (The Tomb of Dracula), martial arts, (Shang-Chi: Master of Kung Fu), sword-and-sorcery (Conan the Barbarian, Red Sonja), satire (Howard the Duck) and science fiction (2001: A Space Odyssey, "Killraven" in Amazing Adventures, Battlestar Galactica, Star Trek, and, late in the decade, the long-running Star Wars series). Some of these were published in larger-format black and white magazines, under its Curtis Magazines imprint. Marvel was able to capitalize on its successful superhero comics of the previous decade by acquiring a new newsstand distributor and greatly expanding its comics line. Marvel pulled ahead of rival DC Comics in 1972, during a time when the price and format of the standard newsstand comic were in flux. Goodman increased the price and size of Marvel's November 1971 cover-dated comics from 15 cents for 36 pages total to 25 cents for 52 pages. DC followed suit, but Marvel the following month dropped its comics to 20 cents for 36 pages, offering a lower-priced product with a higher distributor discount.
In what year did Marvel's sales overtake rival DC?
****
The answer: 1972

The problem: Answer a question about this article:
Southampton is also home to one of the most successful College American Football teams in the UK, the Southampton Stags, who play at the Wide Lane Sports Facility in Eastleigh.
Where is the Wide Lane Sports Facility located?
****
The answer:
Eastleigh