Input: Heian period
The Heian period (平安時代, Heian jidai?) is the last division of classical Japanese history, running from 794 to 1185. The period is named after the capital city of Heian-kyō, or modern Kyōto. It is the period in Japanese history when Buddhism, Taoism and other Chinese influences were at their height. The Heian period is also considered the peak of the Japanese imperial court and noted for its art, especially poetry and literature. Although the Imperial House of Japan had power on the surface, the real power was in the hands of the Fujiwara clan, a powerful aristocratic family who had intermarried with the imperial family. Many emperors actually had mothers from the Fujiwara family. Heian (平安?) means "peace" in Japanese.

The Heian period was known for what types of art?
Output: poetry and literature


Input: Article: New York City's food culture includes a variety of international cuisines influenced by the city's immigrant history. Central European and Italian immigrants originally made the city famous for bagels, cheesecake, and New York-style pizza, while Chinese and other Asian restaurants, sandwich joints, trattorias, diners, and coffeehouses have become ubiquitous. Some 4,000 mobile food vendors licensed by the city, many immigrant-owned, have made Middle Eastern foods such as falafel and kebabs popular examples of modern New York street food. The city is also home to nearly one thousand of the finest and most diverse haute cuisine restaurants in the world, according to Michelin. The New York City Department of Health and Mental Hygiene assigns letter grades to the city's 24,000 restaurants based upon their inspection results.

Now answer this question: How many restaurants are there in NYC?

Output: 24,000


Article: The essence of air defence is to detect hostile aircraft and destroy them. The critical issue is to hit a target moving in three-dimensional space; an attack must not only match these three coordinates, but must do so at the time the target is at that position. This means that projectiles either have to be guided to hit the target, or aimed at the predicted position of the target at the time the projectile reaches it, taking into account speed and direction of both the target and the projectile.

Question: What is the critical issue in air defence?
Ans: to hit a target moving in three-dimensional space


Here is a question about this article: Returning to the basic concept of current flows in a conductor, consider what happens if a half-wave dipole is not connected to a feed point, but instead shorted out. Electrically this forms a single 1⁄2-wavelength element. But the overall current pattern is the same; the current will be zero at the two ends, and reach a maximum in the center. Thus signals near the design frequency will continue to create a standing wave pattern. Any varying electrical current, like the standing wave in the element, will radiate a signal. In this case, aside from resistive losses in the element, the rebroadcast signal will be significantly similar to the original signal in both magnitude and shape. If this element is placed so its signal reaches the main dipole in-phase, it will reinforce the original signal, and increase the current in the dipole. Elements used in this way are known as passive elements.
What is the answer to this question: What does this result in?
****
So... standing wave pattern


The problem: Answer a question about this article:
To counter the trend towards low-density suburban residential growth, the government began a series of controversial public housing projects in the inner city by the Housing Commission of Victoria, which resulted in demolition of many neighbourhoods and a proliferation of high-rise towers. In later years, with the rapid rise of motor vehicle ownership, the investment in freeway and highway developments greatly accelerated the outward suburban sprawl and declining inner city population. The Bolte government sought to rapidly accelerate the modernisation of Melbourne. Major road projects including the remodelling of St Kilda Junction, the widening of Hoddle Street and then the extensive 1969 Melbourne Transportation Plan changed the face of the city into a car-dominated environment.
The widening of what street helped to change the face of Melbourne into a car-dominated environment?
****
The answer: Hoddle Street


The problem: Answer a question about this article:
From the fifth-generation iPod on, Apple introduced a user-configurable volume limit in response to concerns about hearing loss. Users report that in the sixth-generation iPod, the maximum volume output level is limited to 100 dB in EU markets. Apple previously had to remove iPods from shelves in France for exceeding this legal limit. However, users that have bought a new sixth-generation iPod in late 2013 have reported a new option that allowed them to disable the EU volume limit. It has been said that these new iPods came with an updated software that allowed this change. Older sixth-generation iPods, however, are unable to update to this software version.
What is the highest volume output level of European 6th-generation iPods?
****
The answer:
100 dB