Text: In optics, a real image is an image which is located in the plane of convergence for the light rays that originate from a given object. If a screen is placed in the plane of a real image the image will generally become visible on the screen. Examples of real images include the image seen on a cinema screen (the source being the projector), the image produced on a detector in the rear of a camera, and the image produced on an eyeball retina (the camera and eye focus light through an internal convex lens). In ray diagrams (such as the images on the right), real rays of light are always represented by full, solid lines; perceived or extrapolated rays of light are represented by dashed lines. A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to converge.

Question: can a real image be obtained on a screen?

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Answer: yes

Text: Paraffin wax is a soft colourless solid, derived from petroleum, coal or oil shale, that consists of a mixture of hydrocarbon molecules containing between twenty and forty carbon atoms. It is solid at room temperature and begins to melt above approximately 37 C (99 F); its boiling point is >370 C (698 F). Common applications for paraffin wax include lubrication, electrical insulation, and candles; dyed paraffin wax can be made into crayons. It is distinct from kerosene and other petroleum products that are sometimes called paraffin.

Question: is candle wax a solid at room temperature?

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Answer: yes

Text: Lake Superior (French: Lac Superieur; Ojibwe: -, Gitchi-Gami) is the largest of the Great Lakes of North America. The lake is shared by the Canadian province of Ontario to the north, the U.S. state of Minnesota to the west, and Wisconsin and the Upper Peninsula of Michigan to the south. It is generally considered the largest freshwater lake in the world by surface area. It is the world's third-largest freshwater lake by volume and the largest by volume in North America. The furthest north and west of the Great Lakes chain, Superior has the highest elevation of all five great lakes and drains into the St. Mary's River.

Question: is lake superior the largest fresh water lake in the world?

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Answer: yes

Text: The Chicago Black Renaissance (also known as the Black Chicago Renaissance) was a creative movement that blossomed out of the Chicago Black Belt on the city's South Side and spanned the 1930s and 1940s before a transformation in art and culture in the mid-1950s through the turn of the century. The movement included such famous African-American writers as Richard Wright, Margaret Walker, Gwendolyn Brooks, Arna Bontemps, and Lorraine Hansberry, as well as musicians Thomas A. Dorsey, Louis Armstrong, and Earl Hines. During the Great Migration, which brought tens of thousands of African-Americans to Chicago's South Side, African-American writers, artists, and community leaders began promoting racial pride and a new black consciousness, similar to that of the Harlem Renaissance in New York City. Unlike the Harlem Renaissance, the Chicago Black Renaissance did not receive the same amount of publicity on a national setting. This was due to several factors, including the lower profile participants in the movement, the lack of wealthy patrons investing in the movement, and a geographical distance from New York as a publishing center.

Question: does chicago also play a role in what became history's harlem renaissance?

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Answer:
no