Input: Article: Stone and brick became the city's building materials of choice after the construction of wood-frame houses was limited in the aftermath of the Great Fire of 1835. A distinctive feature of many of the city's buildings is the wooden roof-mounted water towers. In the 1800s, the city required their installation on buildings higher than six stories to prevent the need for excessively high water pressures at lower elevations, which could break municipal water pipes. Garden apartments became popular during the 1920s in outlying areas, such as Jackson Heights.

Now answer this question: To prevent high water pressures at lower elevations what were built on many of the city's buildings?

Output: wooden roof-mounted water towers

Article: The central part of the Sahara is hyperarid, with little to no vegetation. The northern and southern reaches of the desert, along with the highlands, have areas of sparse grassland and desert shrub, with trees and taller shrubs in wadis where moisture collects. In the central, hyperarid part, there are many subdivisions of the great desert such as the Tanezrouft, the Tenere, the Libyan Desert, the Eastern Desert, the Nubian Desert and others. These absolute desert regions are characterized by their extreme aridity, and some years can pass without any rainfall.

Question: The northern and southern reaches of the desert are spare of what items?
Ans: grassland and desert shrub

Here is a question about this article: Utrecht hosts several large institutions of higher education. The most prominent of these is Utrecht University (est. 1636), the largest university of the Netherlands with 30,449 students (as of 2012). The university is partially based in the inner city as well as in the Uithof campus area, to the east of the city. According to Shanghai Jiaotong University's university ranking in 2014 it is the 57th best university in the world. Utrecht also houses the much smaller University of Humanistic Studies, which houses about 400 students.
What is the answer to this question: What is the largest University in the city
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So... The most prominent of these is Utrecht University (est. 1636), the largest university of the Netherlands with 30,449 students

The problem: Answer a question about this article:
Interference can hamper memorization and retrieval. There is retroactive interference, when learning new information makes it harder to recall old information and proactive interference, where prior learning disrupts recall of new information. Although interference can lead to forgetting, it is important to keep in mind that there are situations when old information can facilitate learning of new information. Knowing Latin, for instance, can help an individual learn a related language such as French this phenomenon is known as positive transfer.
What is retroactive interference?
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The answer: when learning new information makes it harder to recall old information

Problem: Please answer a question about the following article about Germans:
In 1870, after France attacked Prussia, Prussia and its new allies in Southern Germany (among them Bavaria) were victorious in the Franco-Prussian War. It created the German Empire in 1871 as a German nation-state, effectively excluding the multi-ethnic Austrian Habsburg monarchy and Liechtenstein. Integrating the Austrians nevertheless remained a strong desire for many people of Germany and Austria, especially among the liberals, the social democrats and also the Catholics who were a minority within the Protestant Germany.
When was the German Empire founded?
A: 1871

Question: Read this and answer the question

Richmond recovered quickly from the war, and by 1782 was once again a thriving city. In 1786, the Virginia Statute for Religious Freedom (drafted by Thomas Jefferson) was passed at the temporary capitol in Richmond, providing the basis for the separation of church and state, a key element in the development of the freedom of religion in the United States. A permanent home for the new government, the Virginia State Capitol building, was designed by Thomas Jefferson with the assistance of Charles-Louis Clerisseau, and was completed in 1788.

What is the Virginia Statute for Religious Freedom?
Answer:
the basis for the separation of church and state