The problem: Answer a question about this article:
Modern Estonian orthography is based on the Newer Orthography created by Eduard Ahrens in the second half of the 19th century based on Finnish orthography. The Older Orthography it replaced was created in the 17th century by Bengt Gottfried Forselius and Johann Hornung based on standard German orthography. Earlier writing in Estonian had by and large used an ad hoc orthography based on Latin and Middle Low German orthography. Some influences of the standard German orthography for example, writing 'W'/'w' instead of 'V'/'v' persisted well into the 1930s.
Previous to the Newer Orthography what orthography was in place?
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The answer: Older Orthography

The problem: Answer a question about this article:
Spielberg prefers working with production members with whom he has developed an existing working relationship. An example of this is his production relationship with Kathleen Kennedy who has served as producer on all his major films from E.T. the Extra-Terrestrial to the recent Lincoln. For cinematography, Allen Daviau, a childhood friend and cinematographer, shot the early Spielberg film Amblin and most of his films up to Empire of the Sun; Janusz Kaminski who has shot every Spielberg film since Schindler's List (see List of film director and cinematographer collaborations); and the film editor Michael Kahn who has edited every film directed by Spielberg from Close Encounters to Munich (except E.T. the Extra-Terrestrial). Most of the DVDs of Spielberg's films have documentaries by Laurent Bouzereau.
Which childhood friend worked on Spielberg's films?
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The answer: Allen Daviau

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Many sensor systems rely on light as the signal source. LEDs are often ideal as a light source due to the requirements of the sensors. LEDs are used as motion sensors, for example in optical computer mice. The Nintendo Wii's sensor bar uses infrared LEDs. Pulse oximeters use them for measuring oxygen saturation. Some flatbed scanners use arrays of RGB LEDs rather than the typical cold-cathode fluorescent lamp as the light source. Having independent control of three illuminated colors allows the scanner to calibrate itself for more accurate color balance, and there is no need for warm-up. Further, its sensors only need be monochromatic, since at any one time the page being scanned is only lit by one color of light. Since LEDs can also be used as photodiodes, they can be used for both photo emission and detection. This could be used, for example, in a touchscreen that registers reflected light from a finger or stylus. Many materials and biological systems are sensitive to, or dependent on, light. Grow lights use LEDs to increase photosynthesis in plants, and bacteria and viruses can be removed from water and other substances using UV LEDs for sterilization.
What device uses infrared LEDs to measure oxygen saturation?
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The answer: Pulse oximeters

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Yale's residential college system was established in 1933 by Edward S. Harkness, who admired the social intimacy of Oxford and Cambridge and donated significant funds to found similar colleges at Yale and Harvard. Though Yale's colleges resemble their English precursors organizationally and architecturally, they are dependent entities of Yale College and have limited autonomy. The colleges are led by a master and an academic dean, who reside in the college, and university faculty and affiliates comprise each college's fellowship. Colleges offer their own seminars, social events, and speaking engagements known as "Master's Teas," but do not contain programs of study or academic departments. Instead, all undergraduate courses are taught by the Faculty of Arts and Sciences and are open to members of any college.
Who runs Yale's residential colleges?
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The answer:
The colleges are led by a master and an academic dean