Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Because the nuns of the order did not preach among the people, the need to engage in study was not as immediate or intense as it was for men. They did participate, however, in a number of intellectual activities. Along with sewing and embroidery, nuns often engaged in reading and discussing correspondence from Church leaders. In the Strassburg monastery of St. Margaret, some of the nuns could converse fluently in Latin. Learning still had an elevated place in the lives of these religious. In fact, Margarette Reglerin, a daughter of a wealthy Nuremberg family, was dismissed from a convent because she did not have the ability or will to learn.
Where was Margarette Reglerin from?
A: Nuremberg

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In the United States, heating, ventilation and air conditioning (HVAC) systems account for 30% (4.65 EJ/yr) of the energy used in commercial buildings and nearly 50% (10.1 EJ/yr) of the energy used in residential buildings. Solar heating, cooling and ventilation technologies can be used to offset a portion of this energy.
What can be used to balance out a portion of the energy used by HVAC systems?
A: Solar heating, cooling and ventilation technologies

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
On April 26, 1496 King John I Albert granted the Privilege of Piotrkow (Polish: "Przywilej piotrkowski", "konstytucja piotrkowska" or "statuty piotrkowskie"), increasing the nobility's feudal power over serfs. It bound the peasant to the land, as only one son (not the eldest) was permitted to leave the village; townsfolk (Polish: "mieszczanstwo") were prohibited from owning land; and positions in the Church hierarchy could be given only to nobles.
WHat happened to the nobilities feudal power?
A: increasing

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Combined with this influx of classical ideas was the invention of printing which facilitated dissemination of the printed word and democratized learning. These two things would later lead to the Protestant Reformation. Toward the end of the period, an era of discovery began (Age of Discovery). The rise of the Ottoman Empire, culminating in the Fall of Constantinople in 1453, eroded the last remnants of the Byzantine Empire and cut off trading possibilities with the east. Europeans were forced to seek new trading routes, leading to the expedition of Columbus to the Americas in 1492, and Vasco da Gama's circumnavigation of India and Africa in 1498. Their discoveries strengthened the economy and power of European nations.
In what year did Constantinople fall?
A:
1453