Problem: Vacuum:

Ion gauges are used in ultrahigh vacuum. They come in two types: hot cathode and cold cathode. In the hot cathode version an electrically heated filament produces an electron beam. The electrons travel through the gauge and ionize gas molecules around them. The resulting ions are collected at a negative electrode. The current depends on the number of ions, which depends on the pressure in the gauge. Hot cathode gauges are accurate from 10−3 torr to 10−10 torr. The principle behind cold cathode version is the same, except that electrons are produced in a discharge created by a high voltage electrical discharge. Cold cathode gauges are accurate from 10−2 torr to 10−9 torr. Ionization gauge calibration is very sensitive to construction geometry, chemical composition of gases being measured, corrosion and surface deposits. Their calibration can be invalidated by activation at atmospheric pressure or low vacuum. The composition of gases at high vacuums will usually be unpredictable, so a mass spectrometer must be used in conjunction with the ionization gauge for accurate measurement.

What are the two types of mass spectrometers?
---
A: unanswerable


Problem: The controversy surrounding affirmative action's effectiveness is based on the idea of class inequality. Opponents of racial affirmative action argue that the program actually benefits middle- and upper-class African Americans and Hispanic Americans at the expense of lower-class European Americans and Asian Americans. This argument supports the idea of class-based affirmative action. America's poor is disproportionately made up of people of color, so class-based affirmative action would disproportionately help people of color. This would eliminate the need for race-based affirmative action as well as reducing any disproportionate benefits for middle- and upper-class people of color.
At whose expense other than African Americans are upper-class African Americans and Hispanic Americans supposedly benefiting?
---
Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Glass remained a luxury material, and the disasters that overtook Late Bronze Age civilizations seem to have brought glass-making to a halt. Indigenous development of glass technology in South Asia may have begun in 1730 BCE. In ancient China, though, glassmaking seems to have a late start, compared to ceramics and metal work. The term glass developed in the late Roman Empire. It was in the Roman glassmaking center at Trier, now in modern Germany, that the late-Latin term glesum originated, probably from a Germanic word for a transparent, lustrous substance. Glass objects have been recovered across the Roman empire in domestic, industrial and funerary contexts.[citation needed]
Where did glasswork begin relatively late?
A: China


Context and question: Among other things, the Information Management Group is responsible for the conduct of electronic warfare and the protection of the Armed Forces' communications and computer networks. Within the group, this operational role is fulfilled by the Canadian Forces Information Operations Group, headquartered at CFS Leitrim in Ottawa, which operates the following units: the Canadian Forces Information Operations Group Headquarters (CFIOGHQ), the Canadian Forces Electronic Warfare Centre (CFEWC), the Canadian Forces Network Operation Centre (CFNOC), the Canadian Forces Signals Intelligence Operations Centre (CFSOC), the Canadian Forces Station (CFS) Leitrim, and the 764 Communications Squadron. In June 2011 the Canadian Armed Forces Chief of Force Development announced the establishment of a new organization, the Directorate of Cybernetics, headed by a Brigadier General, the Director General Cyber (DG Cyber). Within that directorate the newly established CAF Cyber Task Force, has been tasked to design and build cyber warfare capabilities for the Canadian Armed Forces.
What is the the Information Management Group not responsible for?
Answer: unanswerable


Question: The Laurentian Highlands, the Interior Plains and the Interior Highlands lie between the two coasts, stretching from the Gulf of Mexico northward, far beyond the national boundary, to the Arctic Ocean. The central plains are divided by a hardly perceptible height of land into a Canadian and a United States portion. It is from the United States side, that the great Mississippi system discharges southward to the Gulf of Mexico. The upper Mississippi and some of the Ohio basin is the semi-arid prairie region, with trees originally only along the watercourses. The uplands towards the Appalachians were included in the great eastern forested area, while the western part of the plains has so dry a climate that its native plant life is scanty, and in the south it is practically barren.
Is there an answer to this question: Where does the Mississippi discharge?

Answer: Gulf of Mexico


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
This steady economic progress has earned Armenia increasing support from international institutions. The International Monetary Fund (IMF), World Bank, European Bank for Reconstruction and Development (EBRD), and other international financial institutions (IFIs) and foreign countries are extending considerable grants and loans. Loans to Armenia since 1993 exceed $1.1 billion. These loans are targeted at reducing the budget deficit and stabilizing the currency; developing private businesses; energy; agriculture; food processing; transportation; the health and education sectors; and ongoing rehabilitation in the earthquake zone. The government joined the World Trade Organization on 5 February 2003. But one of the main sources of foreign direct investments remains the Armenian diaspora, which finances major parts of the reconstruction of infrastructure and other public projects. Being a growing democratic state, Armenia also hopes to get more financial aid from the Western World.
What does IFI stand for?
A:
international financial institutions