Here is a question about this article: The Cathedral of Brasilia in the capital of the Federative Republic of Brazil, is an expression of the architect Oscar Niemeyer. This concrete-framed hyperboloid structure, seems with its glass roof reaching up, open, to the heavens. On 31 May 1970, the Cathedral's structure was finished, and only the 70 m (229.66 ft) diameter of the circular area were visible. Niemeyer's project of Cathedral of Brasilia is based in the hyperboloid of revolution which sections are asymmetric. The hyperboloid structure itself is a result of 16 identical assembled concrete columns. These columns, having hyperbolic section and weighing 90 t, represent two hands moving upwards to heaven. The Cathedral was dedicated on 31 May 1970.
What is the answer to this question: How much do the Cathedral of Brasilia's columns weigh?
****
So... 90 t

The problem: Answer a question about this article:
Over a dozen racial categories would be recognized in conformity with all the possible combinations of hair color, hair texture, eye color, and skin color. These types grade into each other like the colors of the spectrum, and not one category stands significantly isolated from the rest. That is, race referred preferentially to appearance, not heredity, and appearance is a poor indication of ancestry, because only a few genes are responsible for someone's skin color and traits: a person who is considered white may have more African ancestry than a person who is considered black, and the reverse can be also true about European ancestry. The complexity of racial classifications in Brazil reflects the extent of miscegenation in Brazilian society, a society that remains highly, but not strictly, stratified along color lines. These socioeconomic factors are also significant to the limits of racial lines, because a minority of pardos, or brown people, are likely to start declaring themselves white or black if socially upward, and being seen as relatively "whiter" as their perceived social status increases (much as in other regions of Latin America).
What way would categories grade into each other, rather than being isolated from each other?
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The answer: like the colors of the spectrum

Problem: Please answer a question about the following article about The Blitz:
The bombing failed to demoralise the British into surrender or significantly damage the war economy. The eight months of bombing never seriously hampered British production and the war industries continued to operate and expand. The Blitz was only authorised when the Luftwaffe had failed to meet preconditions for a 1940 launch of Operation Sea Lion, the provisionally planned German invasion of Britain. By May 1941 the threat of an invasion of Britain had passed, and Hitler's attention had turned to Operation Barbarossa in the East. In comparison to the later Allied bombing campaign against Germany, the Blitz resulted in relatively few casualties; the British bombing of Hamburg in July 1943 inflicted some 42,000 civilian deaths, about the same as the entire Blitz.
What was the name of the Luftwaffe plan to invade Britain?
A: Operation Sea Lion

Question: Read this and answer the question

The west end of these streets is Bowery and Third Avenue, except for 3rd Street (formerly Amity Place; to Sixth Avenue) and 4th Street (to 13th Street), which extend west and north, respectively, into Greenwich Village. Great Jones Street connects East 3rd to West 3rd.

What name did 3rd Street previously hold?
Answer: Amity Place

Problem: Traditionally a sea-power, Portugal has had a strong tradition in the Portuguese fishing sector and is one of the countries with the highest fish consumption per capita. The main landing sites in Portugal (including Azores and Madeira), according to total landings in weight by year, are the harbours of Matosinhos, Peniche, Olhao, Sesimbra, Figueira da Foz, Sines, Portimao and Madeira. Portuguese processed fish products are exported through several companies, under a number of different brands and registered trademarks, such as Ramirez (the world's oldest active canned fish producer), Bom Petisco, Nero, Combate, Comur, General, Lider, Manna, Murtosa, Pescador, Piteu, Tenorio, Torreira and Vasco da Gama.[citation needed]
What are the names of various companies that produce and export fish products?
The answer is the following: Bom Petisco, Nero, Combate, Comur, General, Lider, Manna, Murtosa, Pescador, Piteu, Tenorio, Torreira and Vasco da Gama

Input: Article: Broadly speaking, Daylight Saving Time was abandoned in the years after the war (with some notable exceptions including Canada, the UK, France, and Ireland for example). However, it was brought back for periods of time in many different places during the following decades, and commonly during the Second World War. It became widely adopted, particularly in North America and Europe starting in the 1970s as a result of the 1970s energy crisis.

Now answer this question: What country joined Canada, the UK, and Ireland in continuing to observe Daylight Saving Time after the war?

Output:
Ireland