The problem: Answer a question about this article:
Of the 10 most populous U.S. cities, Houston has the most total area of parks and green space, 56,405 acres (228 km2). The city also has over 200 additional green spacestotaling over 19,600 acres (79 km2) that are managed by the cityincluding the Houston Arboretum and Nature Center. The Lee and Joe Jamail Skatepark is a public skatepark owned and operated by the city of Houston, and is one of the largest skateparks in Texas consisting of 30,000 (2,800 m2) square foot in-ground facility. The Gerald D. Hines Waterwall Parklocated in the Uptown District of the cityserves as a popular tourist attraction, weddings, and various celebrations. A 2011 study by Walk Score ranked Houston the 23rd most walkable of the 50 largest cities in the United States. Wet'n'Wild SplashTown is a water park located north of Houston.
For whom was the Uptown District water park in Houston named?
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The answer: Gerald D. Hines

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In nature, the red color of blood comes from hemoglobin, the iron-containing protein found in the red blood cells of all vertebrates. The red color of the Grand Canyon and other geological features is caused by hematite or red ochre, both forms of iron oxide. It also causes the red color of the planet Mars. The red sky at sunset and sunrise is caused by an optical effect known as Rayleigh scattering, which, when the sun is low or below the horizon, increases the red-wavelength light that reaches the eye. The color of autumn leaves is caused by pigments called anthocyanins, which are produced towards the end of summer, when the green chlorophyll is no longer produced. One to two percent of the human population has red hair; the color is produced by high levels of the reddish pigment pheomelanin (which also accounts for the red color of the lips) and relatively low levels of the dark pigment eumelanin.
From where does the color red in blood come from?
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The answer: hemoglobin

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Following the events in Olympia, there were reports that China requested permission to deploy People's Liberation Army personnel along the relay route to protect the flame in Canberra. Australian authorities stated that such a request, if it were to be made, would be refused. Chinese officials labeled it a rumor. Australian police have been given powers to search relay spectators, following a call by the Chinese Students and Scholars Association for Chinese Australian students to "go defend our sacred torch" against "ethnic degenerate scum and anti-China separatists". Tony Goh, chairman of the Australian Council of Chinese Organisations, has said the ACCO would be taking "thousands" of pro-Beijing demonstrators to Canberra by bus, to support the torch relay. Zhang Rongan, a Chinese Australian student organising pro-Beijing demonstrations, told the press that Chinese diplomats were assisting with the organization of buses, meals and accommodation for pro-Beijing demonstrators, and helping them organise a "peaceful show of strength". Foreign Minister Stephen Smith said Chinese officials were urging supporters to "turn up and put a point of view", but that he had no objection to it as long as they remained peaceful.
Who told the media that Chinese diplomats were arranging a "peaceful show of strength"?
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The answer: Zhang Rongan

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American University economist George Ayittey accused the Arab government of Sudan of practicing acts of racism against black citizens. According to Ayittey, "In Sudan... the Arabs monopolized power and excluded blacks Arab apartheid." Many African commentators joined Ayittey in accusing Sudan of practising Arab apartheid.
Who was excluded?
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The answer:
blacks