Problem: Please answer a question about the following article about Uranium:
In 2005, seventeen countries produced concentrated uranium oxides, with Canada (27.9% of world production) and Australia (22.8%) being the largest producers and Kazakhstan (10.5%), Russia (8.0%), Namibia (7.5%), Niger (7.4%), Uzbekistan (5.5%), the United States (2.5%), Argentina (2.1%), Ukraine (1.9%) and China (1.7%) also producing significant amounts. Kazakhstan continues to increase production and may have become the world's largest producer of uranium by 2009 with an expected production of 12,826 tonnes, compared to Canada with 11,100 t and Australia with 9,430 t. In the late 1960s, UN geologists also discovered major uranium deposits and other rare mineral reserves in Somalia. The find was the largest of its kind, with industry experts estimating the deposits at over 25% of the world's then known uranium reserves of 800,000 tons.
How many tonnes of uranium was Australia expected to produce in 2009?
A: 9,430

Question: Read this and answer the question

along with two inequality systems expressing economic efficiency. In this model, the (transposed) probability vector p represents the prices of the goods while the probability vector q represents the "intensity" at which the production process would run. The unique solution represents the growth factor which is 1 plus the rate of growth of the economy; the rate of growth equals the interest rate. Proving the existence of a positive growth rate and proving that the growth rate equals the interest rate were remarkable achievements, even for von Neumann.

Was the economic model successful?
Answer: proving that the growth rate equals the interest rate were remarkable achievements, even for von Neumann

Problem: Hospital Maciel is one of the oldest hospitals in Uruguay and stands on the block bounded by the streets Maciel, 25 de Mayo, Guarani and Washington, with the main entrance at 25 de Mayo, 172. The land was originally donated in Spanish colonial times by philanthropist Francisco Antonio Maciel, who teamed up with Mateo Vidal to establish a hospital and charity. The first building was constructed between 1781 and 1788 and later expanded upon. The present building stems from the 1825 plans of Jose Toribio (son of Tomas Toribio) and later Bernardo Poncini (wing on the Guarani street, 1859), Eduardo Canstatt (corner of Guarani and 25 de Mayo) and Julian Masquelez (1889). The hospital has a chapel built in Greek style by Miguel Estevez in 1798.
When was the first building of the Hospital Maciel established?
The answer is the following: between 1781 and 1788

Central Catalan has abandoned almost completely unstressed possessives (mon, etc.) in favour of constructions of article + stressed forms (el meu, etc.), a feature shared with Italian.
What other language shares this type of construction?
Italian

Input: Han dynasty
Wang Mang initiated a series of major reforms that were ultimately unsuccessful. These reforms included outlawing slavery, nationalizing land to equally distribute between households, and introducing new currencies, a change which debased the value of coinage. Although these reforms provoked considerable opposition, Wang's regime met its ultimate downfall with the massive floods of c. 3 AD and 11 AD. Gradual silt buildup in the Yellow River had raised its water level and overwhelmed the flood control works. The Yellow River split into two new branches: one emptying to the north and the other to the south of the Shandong Peninsula, though Han engineers managed to dam the southern branch by 70 AD.

Who created a dam in the southern branch of The Yellow River?
Output: Han engineers

Problem: Please answer a question about the following article about Anti-aircraft warfare:
After the Dambusters raid in 1943 an entirely new system was developed that was required to knock down any low-flying aircraft with a single hit. The first attempt to produce such a system used a 50 mm gun, but this proved inaccurate and a new 55 mm gun replaced it. The system used a centralised control system including both search and targeting radar, which calculated the aim point for the guns after considering windage and ballistics, and then sent electrical commands to the guns, which used hydraulics to point themselves at high speeds. Operators simply fed the guns and selected the targets. This system, modern even by today's standards, was in late development when the war ended.
What replaced the 50 millimeter gun that was not accurate?
A:
a new 55 mm gun