Problem: Gramophone record:

The earliest disc records (1889–1894) 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 is used in order to release the vinyl records from their molds?
---
A: lubricant


Problem: A Latin translation of Ibn Tufail's work, Philosophus Autodidactus, first appeared in 1671, prepared by Edward Pococke the Younger, followed by an English translation by Simon Ockley in 1708, as well as German and Dutch translations. These translations might have later inspired Daniel Defoe to write Robinson Crusoe, regarded as the first novel in English. Philosophus Autodidactus, continuing the thoughts of philosophers such as Aristotle from earlier ages, inspired Robert Boyle to write his own philosophical novel set on an island, The Aspiring Naturalist.
What was Robert Boyle inspired to write by Tufail's work?
---
Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The first overseas deployment of Canadian military forces occurred during the Second Boer War, when several units were raised to serve under British command. Similarly, when the United Kingdom entered into conflict with Germany in the First World War, Canadian troops were called to participate in European theatres. The Canadian Crown-in-Council then decided to send its forces into the Second World War, as well as the Korean War.
What Asian war were the Canadian Forces involved in?
A: Korean War


Context and question: The chapter house and Pyx Chamber at Westminster Abbey are in the guardianship of English Heritage, but under the care and management of the Dean and Chapter of Westminster. English Heritage have funded a major programme of work on the chapter house, comprising repairs to the roof, gutters, stonework on the elevations and flying buttresses as well as repairs to the lead light.
English Heritage has unfunded what for the chapter house?
Answer: unanswerable


Question: The Brazilian federal constitution states that the power to enter into treaties is vested in the president and that such treaties must be approved by Congress (articles 84, clause VIII, and 49, clause I). In practice, this has been interpreted as meaning that the executive branch is free to negotiate and sign a treaty, but its ratification by the president is contingent upon the prior approval of Congress. Additionally, the Federal Supreme Court has ruled that, following ratification and entry into force, a treaty must be incorporated into domestic law by means of a presidential decree published in the federal register in order to be valid in Brazil and applicable by the Brazilian authorities.
Is there an answer to this question: What Brazilian institution has ruled that a treaty must be incorporated into domestic law by means of a presidential decree?

Answer: the Federal Supreme Court


Question: After the Fall of Rome, the Catholic Church became the sole preserver of literate scholarship in Western Europe. The church established cathedral schools in the Early Middle Ages as centers of advanced education. Some of these establishments ultimately evolved into medieval universities and forebears of many of Europe's modern universities. During the High Middle Ages, Chartres Cathedral operated the famous and influential Chartres Cathedral School. The medieval universities of Western Christendom were well-integrated across all of Western Europe, encouraged freedom of inquiry, and produced a great variety of fine scholars and natural philosophers, including Thomas Aquinas of the University of Naples, Robert Grosseteste of the University of Oxford, an early expositor of a systematic method of scientific experimentation, and Saint Albert the Great, a pioneer of biological field research. Founded in 1088, the University of Bologne is considered the first, and the oldest continually operating university.
Is there an answer to this question:  What did these early schools during the Middle Ages evolve from?

Answer:
unanswerable