The problem: Answer a question about this article:
At the end of the first decade of the 21st century, downtown Tucson underwent a revitalization effort by city planners and the business community. The primary project was Rio Nuevo, a large retail and community center that has been stalled in planning for more than ten years. Downtown is generally regarded as the area bordered by 17th Street to the south, I-10 to the west, and 6th Street to the north, and Toole Avenue and the Union Pacific (formerly Southern Pacific) railroad tracks, site of the historic train depot and "Locomotive #1673", built in 1900. Downtown is divided into the Presidio District, the Barrio Viejo, and the Congress Street Arts and Entertainment District. Some authorities include the 4th Avenue shopping district, which is set just northeast of the rest of downtown and connected by an underpass beneath the UPRR tracks.
What was the Union Pacific once known as?
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The answer: Southern Pacific


The problem: Answer a question about this article:
Genetic studies have found significant African female-mediated gene flow in Arab communities in the Arabian Peninsula and neighboring countries, with an average of 38% of maternal lineages in Yemen are of direct African descent, 16% in Oman-Qatar, and 10% in Saudi Arabia-United Arab Emirates.
Genetic studies have found which gene in Arab communities?
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The answer: African female-mediated gene


The problem: Answer a question about this article:
Some hunter-gatherer cultures, such as the indigenous peoples of the Pacific Northwest Coast, lived in particularly rich environments that allowed them to be sedentary or semi-sedentary.
What does a lush environment allow hunter-gatherers to be?
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The answer: sedentary or semi-sedentary


The problem: Answer a question about this article:
While comics are often the work of a single creator, the labour of making them is frequently divided between a number of specialists. There may be separate writers and artists, and artists may specialize in parts of the artwork such as characters or backgrounds, as is common in Japan. Particularly in American superhero comic books, the art may be divided between a penciller, who lays out the artwork in pencil; an inker, who finishes the artwork in ink; a colourist; and a letterer, who adds the captions and speech balloons.
Though one person typically creates the comic, there are usually a number of what involved in actually designing it?
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The answer:
specialists