Problem: Group (mathematics):

Lie groups are of fundamental importance in modern physics: Noether's theorem links continuous symmetries to conserved quantities. Rotation, as well as translations in space and time are basic symmetries of the laws of mechanics. They can, for instance, be used to construct simple models—imposing, say, axial symmetry on a situation will typically lead to significant simplification in the equations one needs to solve to provide a physical description.v[›] Another example are the Lorentz transformations, which relate measurements of time and velocity of two observers in motion relative to each other. They can be deduced in a purely group-theoretical way, by expressing the transformations as a rotational symmetry of Minkowski space. The latter serves—in the absence of significant gravitation—as a model of space time in special relativity. The full symmetry group of Minkowski space, i.e. including translations, is known as the Poincaré group. By the above, it plays a pivotal role in special relativity and, by implication, for quantum field theories. Symmetries that vary with location are central to the modern description of physical interactions with the help of gauge theory.

What connects Lie groups with conserved quantities?
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A: unanswerable


Problem: Antibiotics revolutionized medicine in the 20th century, and have together with vaccination led to the near eradication of diseases such as tuberculosis in the developed world. Their effectiveness and easy access led to overuse, especially in livestock raising, prompting bacteria to develop resistance. This has led to widespread problems with antimicrobial and antibiotic resistance, so much as to prompt the World Health Organization to classify antimicrobial resistance as a "serious threat [that] is no longer a prediction for the future, it is happening right now in every region of the world and has the potential to affect anyone, of any age, in any country".
In which century were antibiotics first introduced?
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Answer: 20th century


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Head of State of Portugal is the President of the Republic, elected to a five-year term by direct, universal suffrage. He or she has also supervision and reserve powers. These powers are often compared[by whom?] with the "moderator power" that was held by the King in the Portuguese Constitutional Monarchy.[citation needed] Presidential powers include the appointment of the Prime Minister and the other members of the Government (where the President takes into account the results of legislative elections); dismissing the Prime Minister; dissolving the Assembly of the Republic (to call early elections); vetoing legislation (which may be overridden by the Assembly with a supermajority); and declaring a state of war or siege. The President is also the ex officio Commander-in-Chief of the Armed Forces.
Who has the power to appoint and dismiss the Prime Minister?
A: President of the Republic


Context and question: By 1990, the Census Bureau included more than a dozen ethnic/racial categories on the census, reflecting not only changing social ideas about ethnicity, but the wide variety of immigrants who had come to reside in the United States due to changing historical forces and new immigration laws in the 1960s. With a changing society, more citizens have begun to press for acknowledging multiracial ancestry. The Census Bureau changed its data collection by allowing people to self-identify as more than one ethnicity. Some ethnic groups are concerned about the potential political and economic effects, as federal assistance to historically underserved groups has depended on Census data. According to the Census Bureau, as of 2002, over 75% of all African Americans had multiracial ancestries.
About how many African American have multiracial ancestries
Answer: According to the Census Bureau, as of 2002, over 75% of all African Americans had multiracial ancestries.


Question: The West Bank was annexed by Jordan in 1950, following the Arab rejection of the UN decision to create two states in Palestine. Only Britain recognized this annexation and Jordan has since ceded its claim to the territory to the PLO. The West Bank was occupied by Israel in 1967 during the Six-Day War. The population are mainly Palestinians, including refugees of the 1948 Arab-Israeli War. From their occupation in 1967 until 1993, the Palestinians living in these territories were under Israeli military administration. Since the Israel–PLO letters of recognition, most of the Palestinian population and cities have been under the internal jurisdiction of the Palestinian Authority, and only partial Israeli military control, although Israel has on several occasions redeployed its troops and reinstated full military administration during periods of unrest. In response to increasing attacks as part of the Second Intifada, the Israeli government started to construct the Israeli West Bank barrier. When completed, approximately 13% of the Barrier will be constructed on the Green Line or in Israel with 87% inside the West Bank.
Is there an answer to this question: What was the majority of the population in the West Bank?

Answer: Palestinians


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In 1185 John made his first visit to Ireland, accompanied by 300 knights and a team of administrators. Henry had tried to have John officially proclaimed King of Ireland, but Pope Lucius III would not agree. John's first period of rule in Ireland was not a success. Ireland had only recently been conquered by Anglo-Norman forces, and tensions were still rife between Henry II, the new settlers and the existing inhabitants. John infamously offended the local Irish rulers by making fun of their unfashionable long beards, failed to make allies amongst the Anglo-Norman settlers, began to lose ground militarily against the Irish and finally returned to England later in the year, blaming the viceroy, Hugh de Lacy, for the fiasco.
How many knights accompanied John to Ireland?
A:
300