Problem: Please answer a question about the following article about Gramophone record:
The earliest disc records (18891894) were made of various materials including hard rubber. Around 1895, a shellac-based compound was introduced and became standard. Exact formulas for this compound varied by manufacturer and over the course of time, but it was typically composed of about one-third shellac and about two-thirds mineral filler, which meant finely pulverized rock, usually slate and limestone, with an admixture of cotton fibers to add tensile strength, carbon black for color (without this, it tended to be a "dirty" gray or brown color that most record companies considered unattractive), and a very small amount of a lubricant to facilitate mold release during manufacture. Some makers, notably Columbia Records, used a laminated construction with a core disc of coarser material or fiber. The production of shellac records continued until the end of the 78 rpm format (i.e., the late 1950s in most developed countries, but well into the 1960s in some other places), but increasingly less abrasive formulations were used during its declining years and very late examples in truly like-new condition can have as low noise levels as vinyl.
What material give the vinyl records their known black color?
A: carbon
Problem: Please answer a question about the following article about Pharmaceutical industry:
The aftermath of World War II saw an explosion in the discovery of new classes of antibacterial drugs including the cephalosporins (developed by Eli Lilly based on the seminal work of Giuseppe Brotzu and Edward Abraham), streptomycin (discovered during a Merck-funded research program in Selman Waksman's laboratory), the tetracyclines (discovered at Lederle Laboratories, now a part of Pfizer), erythromycin (discovered at Eli Lilly and Co.) and their extension to an increasingly wide range of bacterial pathogens. Streptomycin, discovered during a Merck-funded research program in Selman Waksman's laboratory at Rutgers in 1943, became the first effective treatment for tuberculosis. At the time of its discovery, sanitoriums for the isolation of tuberculosis-infected people were an ubiquitous feature of cities in developed countries, with 50% dying within 5 years of admission.
When was the first effective treatment for Tuberculosis discovered?
A: 1943
Problem: Please answer a question about the following article about Supreme court:
The titles of state supreme court vary, which can cause confusion between jurisdictions because one state may use a name for its highest court that another uses for a lower court. In New York, Maryland, and the District of Columbia the highest court is called the Court of Appeals, a name used by many states for their intermediate appellate courts. Further, trial courts of general jurisdiction in New York are called the Supreme Court, and the intermediate appellate court is called the Supreme Court, Appellate Division. In West Virginia, the highest court of the state is the Supreme Court of Appeals. In Maine and Massachusetts the highest court is styled the "Supreme Judicial Court"; the last is the oldest appellate court of continuous operation in the Western Hemisphere.
What state's supreme court is the oldest appellate court body in the western hemisphere?
A: Massachusetts
Problem: Please answer a question about the following article about Christian:
The Chinese word is (pinyin: jidu tu), literally "Christ follower." The two characters now pronounced Jidu in Mandarin Chinese, were originally pronounced Ki-To in Cantonese as representation of Latin "Cristo".[citation needed] In Vietnam, the same two characters read Co oc, and a "follower of Christianity" is a tin o Co oc giao.
What does (pinyin: jidu tu) mean?
A:
Christ follower