Input: United States presidential election, 2004
The dismal results caused Gephardt to drop out and later endorse Kerry. Carol Moseley Braun also dropped out, endorsing Howard Dean. Besides the impact of coming in third, Dean was further hurt by a speech he gave at a post-caucus rally. Dean was shouting over the cheers of his enthusiastic audience, but the crowd noise was being filtered out by his unidirectional microphone, leaving only his full-throated exhortations audible to the television viewers. To those at home, he seemed to raise his voice out of sheer emotion. The incessant replaying of the "Dean Scream" by the press became a debate on the topic of whether Dean was the victim of media bias. The scream scene was shown approximately 633 times by cable and broadcast news networks in just four days following the incident, a number that does not include talk shows and local news broadcasts. However, those who were in the actual audience that day insist that they were not aware of the infamous "scream" until they returned to their hotel rooms and saw it on TV.

Which candidate, after dropping out, went on to endorse Kerry?
Output: Gephardt

Input: Article: The difference in the above factors for the case of =0 is the reason that most broadcasting (transmissions intended for the public) uses vertical polarization. For receivers near the ground, horizontally polarized transmissions suffer cancellation. For best reception the receiving antennas for these signals are likewise vertically polarized. In some applications where the receiving antenna must work in any position, as in mobile phones, the base station antennas use mixed polarization, such as linear polarization at an angle (with both vertical and horizontal components) or circular polarization.

Now answer this question: What is one use that would require an antenna to receive signals in various ways at once?

Output: mobile phones

Article: IBM announced it will launch its new software, called "Open Client Offering" which is to run on Linux, Microsoft Windows and Apple's Mac OS X. The company states that its new product allows businesses to offer employees a choice of using the same software on Windows and its alternatives. This means that "Open Client Offering" is to cut costs of managing whether to use Linux or Apple relative to Windows. There will be no necessity for companies to pay Microsoft for its licenses for operating systems since the operating systems will no longer rely on software which is Windows-based. One alternative to Microsoft's office document formats is the Open Document Format software, whose development IBM supports. It is going to be used for several tasks like: word processing, presentations, along with collaboration with Lotus Notes, instant messaging and blog tools as well as an Internet Explorer competitor the Mozilla Firefox web browser. IBM plans to install Open Client on 5% of its desktop PCs. The Linux offering has been made available as the IBM Client for Smart Work product on the Ubuntu and Red Hat Enterprise Linux platforms.

Question: What percentage of its desktop PCs does IBM plan to install Open Client on to?
Ans: 5%

Here is a question about this article: The macronutrients are carbohydrates, fats, protein, and water. The macronutrients (excluding fiber and water) provide structural material (amino acids from which proteins are built, and lipids from which cell membranes and some signaling molecules are built) and energy. Some of the structural material can be used to generate energy internally, and in either case it is measured in Joules or kilocalories (often called "Calories" and written with a capital C to distinguish them from little 'c' calories). Carbohydrates and proteins provide 17 kJ approximately (4 kcal) of energy per gram, while fats provide 37 kJ (9 kcal) per gram, though the net energy from either depends on such factors as absorption and digestive effort, which vary substantially from instance to instance. Vitamins, minerals, fiber, and water do not provide energy, but are required for other reasons.
What is the answer to this question: What unit other than calories is used to measure the energy generated by nutrients?
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So... Joules

The problem: Answer a question about this article:
Since 2009, the Tucson Festival of Books has been held annually over a two-day period in March at the University of Arizona. By 2010 it had become the fourth largest book festival in the United States, with 450 authors and 80,000 attendees. In addition to readings and lectures, it features a science fair, varied entertainment, food, and exhibitors ranging from local retailers and publishers to regional and national nonprofit organizations. In 2011, the Festival began presenting a Founder's Award; recipients include Elmore Leonard and R.L. Stine.
When is the Tucson Festival of Books held?
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The answer: a two-day period in March

The problem: Answer a question about this article:
The X-ray crystal density method is primarily a method for determining the Avogadro constant NA but as the Avogadro constant is related to the Planck constant it also determines a value for h. The principle behind the method is to determine NA as the ratio between the volume of the unit cell of a crystal, measured by X-ray crystallography, and the molar volume of the substance. Crystals of silicon are used, as they are available in high quality and purity by the technology developed for the semiconductor industry. The unit cell volume is calculated from the spacing between two crystal planes referred to as d220. The molar volume Vm(Si) requires a knowledge of the density of the crystal and the atomic weight of the silicon used. The Planck constant is given by
Calculating molar volume requires knowledge of what two factors?
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The answer:
the density of the crystal and the atomic weight of the silicon used