The problem: Answer a question about this article:
Digestion begins in the mouth with the secretion of saliva and its digestive enzymes. Food is formed into a bolus by the mechanical mastication and swallowed into the esophagus from where it enters the stomach through the action of peristalsis. Gastric juice contains hydrochloric acid and pepsin which would damage the walls of the stomach and mucus is secreted for protection. In the stomach further release of enzymes break down the food further and this is combined with the churning action of the stomach. The partially digested food enters the duodenum as a thick semi-liquid chyme. In the small intestine, the larger part of digestion takes place and this is helped by the secretions of bile, pancreatic juice and intestinal juice. The intestinal walls are lined with villi, and their epithelial cells is covered with numerous microvilli to improve the absorption of nutrients by increasing the surface area of the intestine.
Where does food go after the esophagus?
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The answer: the stomach


The problem: Answer a question about this article:
The theory of special relativity finds a convenient formulation in Minkowski spacetime, a mathematical structure that combines three dimensions of space with a single dimension of time. In this formalism, distances in space can be measured by how long light takes to travel that distance, e.g., a light-year is a measure of distance, and a meter is now defined in terms of how far light travels in a certain amount of time. Two events in Minkowski spacetime are separated by an invariant interval, which can be either space-like, light-like, or time-like. Events that have a time-like separation cannot be simultaneous in any frame of reference, there must be a temporal component (and possibly a spatial one) to their separation. Events that have a space-like separation will be simultaneous in some frame of reference, and there is no frame of reference in which they do not have a spatial separation. Different observers may calculate different distances and different time intervals between two events, but the invariant interval between the events is independent of the observer (and his velocity).
The invariant interval between events is independent of what?
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The answer: of the observer (and his velocity)


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The game's score was composed by Toru Minegishi and Asuka Ohta, with series regular Koji Kondo serving as the sound supervisor. Minegishi took charge of composition and sound design in Twilight Princess, providing all field and dungeon music under the supervision of Kondo. For the trailers, three pieces were written by different composers, two of which were created by Mahito Yokota and Kondo. Michiru Ōshima created orchestral arrangements for the three compositions, later to be performed by an ensemble conducted by Yasuzo Takemoto. Kondo's piece was later chosen as music for the E3 2005 trailer and for the demo movie after the game's title screen.
Who wrote the music used in the game's trailer and demo?
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The answer: Koji Kondo


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iPods cannot play music files from competing music stores that use rival-DRM technologies like Microsoft's protected WMA or RealNetworks' Helix DRM. Example stores include Napster and MSN Music. RealNetworks claims that Apple is creating problems for itself by using FairPlay to lock users into using the iTunes Store. Steve Jobs stated that Apple makes little profit from song sales, although Apple uses the store to promote iPod sales. However, iPods can also play music files from online stores that do not use DRM, such as eMusic or Amie Street.
The iPod can play music from other online stores as long as they don't contain what feature?
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The answer:
DRM