TASK DEFINITION: This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
PROBLEM: Before World War II, Oklahoma City developed major stockyards, attracting jobs and revenue formerly in Chicago and Omaha, Nebraska. With the 1928 discovery of oil within the city limits (including under the State Capitol), Oklahoma City became a major center of oil production. Post-war growth accompanied the construction of the Interstate Highway System, which made Oklahoma City a major interchange as the convergence of I-35, I-40 and I-44. It was also aided by federal development of Tinker Air Force Base.

SOLUTION: When was oil discovered in the city limits?

PROBLEM: The epidermis is typically 10 to 30 cells thick; its main function is to provide a waterproof layer. Its outermost cells are constantly lost; its bottommost cells are constantly dividing and pushing upward. The middle layer, the dermis, is 15 to 40 times thicker than the epidermis. The dermis is made up of many components, such as bony structures and blood vessels. The hypodermis is made up of adipose tissue. Its job is to store lipids, and to provide cushioning and insulation. The thickness of this layer varies widely from species to species.

SOLUTION: What is the typical thickness of the epidermis?

PROBLEM: In 2010, the G.R. N'Namdi Gallery opened in a 16,000-square-foot (1,500 m2) complex in Midtown. Important history of America and the Detroit area are exhibited at The Henry Ford in Dearborn, the United States' largest indoor-outdoor museum complex. The Detroit Historical Society provides information about tours of area churches, skyscrapers, and mansions. Inside Detroit, meanwhile, hosts tours, educational programming, and a downtown welcome center. Other sites of interest are the Detroit Zoo in Royal Oak, the Cranbrook Art Museum in Bloomfield Hills, the Anna Scripps Whitcomb Conservatory on Belle Isle, and Walter P. Chrysler Museum in Auburn Hills.

SOLUTION:
What is the U.S.'s largest museum complex?