Problem: Please answer a question about the following article about Estonian language:
Although the Estonian orthography is generally guided by phonemic principles, with each grapheme corresponding to one phoneme, there are some historical and morphological deviations from this: for example preservation of the morpheme in declension of the word (writing b, g, d in places where p, k, t is pronounced) and in the use of 'i' and 'j'.[clarification needed] Where it is very impractical or impossible to type s and z, they are substituted with sh and zh in some written texts, although this is considered incorrect. Otherwise, the h in sh represents a voiceless glottal fricative, as in Pasha (pas-ha); this also applies to some foreign names.
On what occasions are s and z replaced with sh and zh?
A: Where it is very impractical or impossible to type s and z
Problem: Please answer a question about the following article about Apollo:
The connection with Dorians and their initiation festival apellai[clarification needed] is reinforced by the month Apellaios in northwest Greek calendars, but it can explain only the Doric type of the name, which is connected with the Ancient Macedonian word "pella" (Pella), stone. Stones played an important part in the cult of the god, especially in the oracular shrine of Delphi (Omphalos). The "Homeric hymn" represents Apollo as a Northern intruder. His arrival must have occurred during the "Dark Ages" that followed the destruction of the Mycenaean civilization, and his conflict with Gaia (Mother Earth) was represented by the legend of his slaying her daughter the serpent Python.
What played an important part in the cult of the god?
A: Stones
Problem: Please answer a question about the following article about 2008 Sichuan earthquake:
News reports indicate that the poorer, rural villages were hardest hit. Swaminathan Krishnan, assistant professor of civil engineering and geophysics at the California Institute of Technology said: "the earthquake occurred in the rural part of China. Presumably, many of the buildings were just built; they were not designed, so to speak." Swaminathan Krishnan further added: "There are very strong building codes in China, which take care of earthquake issues and seismic design issues. But many of these buildings presumably were quite old and probably were not built with any regulations overseeing them."
Who was an assistant professor of civil engineering and geophysics at the California Institute of Technology?
A: Swaminathan Krishnan
Problem: Please answer a question about the following article about Red:
Red is the color at the end of the spectrum of visible light next to orange and opposite violet. Red color has a predominant light wavelength of roughly 620740 nanometres. Red is one of the additive primary colors of visible light, along with green and blue, which in Red Green Blue (RGB) color systems are combined to create all the colors on a computer monitor or television screen. Red is also one of the subtractive primary colors, along with yellow and blue, of the RYB color space and traditional color wheel used by painters and artists.
What spectrum of light is red within?
A:
visible light