The problem: Answer a question about this article:
Through the influence of the Eusebian faction at Constantinople, an Arian bishop, George of Cappadocia, was now appointed to rule the see of Alexandria. Athanasius, after remaining some days in the neighbourhood of the city, finally withdrew into the desert of Upper Egypt, where he remained for a period of six years, living the life of the monks, devoting himself to the composition of a group of writings; "Apology to Constantius", the "Apology for his Flight", the "Letter to the Monks", and the "History of the Arians".
To where did Saint Athanasius withdraw?
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The answer: the desert of Upper Egypt

Problem: Please answer a question about the following article about Anti-aircraft warfare:
The introduction of the guided missile resulted in a significant shift in anti-aircraft strategy. Although Germany had been desperate to introduce anti-aircraft missile systems, none became operational during World War II. Following several years of post-war development, however, these systems began to mature into viable weapons systems. The US started an upgrade of their defences using the Nike Ajax missile, and soon the larger anti-aircraft guns disappeared. The same thing occurred in the USSR after the introduction of their SA-2 Guideline systems.
What missile did the United States upgrade their defences with?
A: the Nike Ajax missile

Question: Read this and answer the question

Nanjing is endowed with rich natural resources, which include more than 40 kinds of minerals. Among them, iron and sulfur reserves make up 40 percent of those of Jiangsu province. Its reserves of strontium rank first in East Asia and the South East Asia region. Nanjing also possesses abundant water resources, both from the Yangtze River and groundwater. In addition, it has several natural hot springs such as Tangshan Hot Spring in Jiangning and Tangquan Hot Spring in Pukou.

For what mineral reserve does Nanjing rank first in both East Asia and the South East Asia areas?
Answer: strontium

Problem: Stock trader and financial risk engineer Nassim Nicholas Taleb, author of the 2007 book The Black Swan, spent years warning against the breakdown of the banking system in particular and the economy in general owing to their use of bad risk models and reliance on forecasting, and their reliance on bad models, and framed the problem as part of "robustness and fragility". He also took action against the establishment view by making a big financial bet on banking stocks and making a fortune from the crisis ("They didn't listen, so I took their money"). According to David Brooks from the New York Times, "Taleb not only has an explanation for what's happening, he saw it coming."
Who wrote the 2007 book The Black Swan?
The answer is the following: Nassim Nicholas Taleb

Throughout the Industrial Revolution, Plymouth grew as a commercial shipping port, handling imports and passengers from the Americas, and exporting local minerals (tin, copper, lime, china clay and arsenic) while the neighbouring town of Devonport became a strategic Royal Naval shipbuilding and dockyard town. In 1914 three neighbouring independent towns, viz., the county borough of Plymouth, the county borough of Devonport, and the urban district of East Stonehouse were merged to form a single County Borough. The combined town took the name of Plymouth which, in 1928, achieved city status. The city's naval importance later led to its targeting and partial destruction during World War II, an act known as the Plymouth Blitz. After the war the city centre was completely rebuilt and subsequent expansion led to the incorporation of Plympton and Plymstock along with other outlying suburbs in 1967.
In what year did Plymouth become a city?
1928

Here is a question about this article: According to China daily. Fifteen years after the satellite system was launched, it is now generating $31.5 billion for major companies such as China Aerospace Science and Industry Corp, AutoNavi Holdings Ltd, and China North Industries Group Corp.
What is the answer to this question: How much revenue for companies is generated by the BDS system?
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So...
$31.5 billion