Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Sony Music Entertainment Inc. (sometimes known as Sony Music or by the initials, SME) is an American music corporation managed and operated by Sony Corporation of America (SCA), a subsidiary of Japanese conglomerate Sony Corporation. In 1929, the enterprise was first founded as American Record Corporation (ARC) and, in 1938, was renamed Columbia Recording Corporation, following ARC's acquisition by CBS. In 1966, the company was reorganized to become CBS Records. In 1987, Sony Corporation of Japan bought the company, and in 1991, renamed it SME. It is the world's second largest recorded music company, after Universal Music Group.
What company is the only group larger than Sony Music Entertainment?
A: Universal Music Group.

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Zinc is an essential mineral perceived by the public today as being of "exceptional biologic and public health importance", especially regarding prenatal and postnatal development. Zinc deficiency affects about two billion people in the developing world and is associated with many diseases. In children it causes growth retardation, delayed sexual maturation, infection susceptibility, and diarrhea. Enzymes with a zinc atom in the reactive center are widespread in biochemistry, such as alcohol dehydrogenase in humans. Consumption of excess zinc can cause ataxia, lethargy and copper deficiency.
What can cause symptoms in children ranging from diarrhea to retarded growth?
A: Zinc deficiency

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Although the city lost the status of state capital to Columbia in 1786, Charleston became even more prosperous in the plantation-dominated economy of the post-Revolutionary years. The invention of the cotton gin in 1793 revolutionized the processing of this crop, making short-staple cotton profitable. It was more easily grown in the upland areas, and cotton quickly became South Carolina's major export commodity. The Piedmont region was developed into cotton plantations, to which the sea islands and Lowcountry were already devoted. Slaves were also the primary labor force within the city, working as domestics, artisans, market workers, and laborers.
Who made up little of the primary labor force of cotton plantations?
A: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Coulton Waugh attempted the first comprehensive history of American comics with The Comics (1947). Will Eisner's Comics and Sequential Art (1985) and Scott McCloud's Understanding Comics (1993) were early attempts in English to formalize the study of comics. David Carrier's The Aesthetics of Comics (2000) was the first full-length treatment of comics from a philosophical perspective. Prominent American attempts at definitions of comics include Eisner's, McCloud's, and Harvey's. Eisner described what he called "sequential art" as "the arrangement of pictures or images and words to narrate a story or dramatize an idea"; Scott McCloud defined comics "juxtaposed pictorial and other images in deliberate sequence, intended to convey information and/or to produce an aesthetic response in the viewer", a strictly formal definition which detached comics from its historical and cultural trappings. R. C. Harvey defined comics as "pictorial narratives or expositions in which words (often lettered into the picture area within speech balloons) usually contribute to the meaning of the pictures and vice versa". Each definition has had its detractors. Harvey saw McCloud's definition as excluding single-panel cartoons, and objected to McCloud's de-emphasizing verbal elements, insisting "the essential characteristic of comics is the incorporation of verbal content". Aaron Meskin saw McCloud's theories as an artificial attempt to legitimize the place of comics in art history.
Who put together a history of American comics in 1974?
A:
unanswerable