Problem: British Isles:

By the Late Middle Ages, Great Britain was separated into the Kingdoms of England and Scotland. Power in Ireland fluxed between Gaelic kingdoms, Hiberno-Norman lords and the English-dominated Lordship of Ireland. A similar situation existed in the Principality of Wales, which was slowly being annexed into the Kingdom of England by a series of laws. During the course of the 15th century, the Crown of England would assert a claim to the Crown of France, thereby also releasing the King of England as from being vassal of the King of France. In 1534, King Henry VIII, at first having been a strong defender of Roman Catholicism in the face of the Reformation, separated from the Roman Church after failing to secure a divorce from the Pope. His response was to place the King of England as "the only Supreme Head in Earth of the Church of England", thereby removing the authority of the Pope from the affairs of the English Church. Ireland, which had been held by the King of England as Lord of Ireland, but which strictly speaking had been a feudal possession of the Pope since the Norman invasion was declared a separate kingdom in personal union with England.

During the late Middle Ages, the Roman Church was separated into England and what other country?
---
A: unanswerable


Problem: The population grew rapidly, from 800,000 in 1814 to 914,000 in 1830 and 1,067,000 in 1846. The combination of economic and demographic factors led to hunger, housing shortages and a lack of work for young people. Thus, it is not surprising that people left Alsace, not only for Paris – where the Alsatian community grew in numbers, with famous members such as Baron Haussmann – but also for more distant places like Russia and the Austrian Empire, to take advantage of the new opportunities offered there: Austria had conquered lands in Eastern Europe from the Ottoman Empire and offered generous terms to colonists as a way of consolidating its hold on the new territories. Many Alsatians also began to sail to the United States, settling in many areas from 1820 to 1850. In 1843 and 1844, sailing ships bringing immigrant families from Alsace arrived at the port of New York. Some settled in Illinois, many to farm or to seek success in commercial ventures: for example, the sailing ships Sully (in May 1843) and Iowa (in June 1844) brought families who set up homes in northern Illinois and northern Indiana. Some Alsatian immigrants were noted for their roles in 19th-century American economic development. Others ventured to Canada to settle in southwestern Ontario, notably Waterloo County.
What was the population of Paris in 1846?
---
Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Beyoncé names Michael Jackson as her major musical influence. Aged five, Beyoncé attended her first ever concert where Jackson performed and she claims to have realised her purpose. When she presented him with a tribute award at the World Music Awards in 2006, Beyoncé said, "if it wasn't for Michael Jackson, I would never ever have performed." She admires Diana Ross as an "all-around entertainer" and Whitney Houston, who she said "inspired me to get up there and do what she did." She credits Mariah Carey's singing and her song "Vision of Love" as influencing her to begin practicing vocal runs as a child. Her other musical influences include Aaliyah, Prince, Lauryn Hill, Sade Adu, Donna Summer, Mary J. Blige, Janet Jackson, Anita Baker and Rachelle Ferrell.
Beyonce cites Mariah Carey to making her want to start doing what?
A: vocal runs


Context and question: IBM started working on a prototype system loosely based on Codd's concepts as System R in the early 1970s. The first version was ready in 1974/5, and work then started on multi-table systems in which the data could be split so that all of the data for a record (some of which is optional) did not have to be stored in a single large "chunk". Subsequent multi-user versions were tested by customers in 1978 and 1979, by which time a standardized query language – SQL[citation needed] – had been added. Codd's ideas were establishing themselves as both workable and superior to CODASYL, pushing IBM to develop a true production version of System R, known as SQL/DS, and, later, Database 2 (DB2).
When was IBM's system released?
Answer: 1974/5


Question: Bird migration is not limited to birds that can fly. Most species of penguin (Spheniscidae) migrate by swimming. These routes can cover over 1,000 km (620 mi). Dusky grouse Dendragapus obscurus perform altitudinal migration mostly by walking. Emus Dromaius novaehollandiae in Australia have been observed to undertake long-distance movements on foot during droughts.
Is there an answer to this question: Where are Emus from?

Answer: Australia


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Heartwood is often visually distinct from the living sapwood, and can be distinguished in a cross-section where the boundary will tend to follow the growth rings. For example, it is sometimes much darker. However, other processes such as decay or insect invasion can also discolor wood, even in woody plants that do not form heartwood, which may lead to confusion.
In what part of a tree's cross-section is heartwood visible?
A:
growth rings