Context and question: The language possesses five vowels (or six, under the St. Petersburg Phonological School), which are written with different letters depending on whether or not the preceding consonant is palatalized. The consonants typically come in plain vs. palatalized pairs, which are traditionally called hard and soft. (The hard consonants are often velarized, especially before front vowels, as in Irish). The standard language, based on the Moscow dialect, possesses heavy stress and moderate variation in pitch. Stressed vowels are somewhat lengthened, while unstressed vowels tend to be reduced to near-close vowels or an unclear schwa. (See also: vowel reduction in Russian.)
How many classes are there at the St. Petersburg Phonological School?
Answer: unanswerable
Context and question: After wrapping up in England, production travelled to Morocco in June, with filming taking place in Oujda, Tangier and Erfoud, after preliminary work was completed by the production's second unit. An explosion filmed in Morocco holds a Guinness World Record for the "Largest film stunt explosion" in cinematic history, with the record credited to production designer Chris Corbould. Principal photography concluded on 5 July 2015. A wrap-up party for Spectre was held in commemoration before entering post-production. Filming took 128 days.
The record was credited to which screenwriter?
Answer: unanswerable
Context and question: Discussions of strategy in the mid Ming dynasty focused primarily on recovery of the Ordos region, which the Mongols used as a rallying base to stage raids into Ming China. Norbu states that the Ming dynasty, preoccupied with the Mongol threat to the north, could not spare additional armed forces to enforce or back up their claim of sovereignty over Tibet; instead, they relied on "Confucian instruments of tribute relations" of heaping unlimited number of titles and gifts on Tibetan lamas through acts of diplomacy. Sperling states that the delicate relationship between the Ming and Tibet was "the last time a united China had to deal with an independent Tibet," that there was a potential for armed conflict at their borders, and that the ultimate goal of Ming foreign policy with Tibet was not subjugation but "avoidance of any kind of Tibetan threat." P. Christiaan Klieger argues that the Ming court's patronage of high Tibetan lamas "was designed to help stabilize border regions and protect trade routes."
Who used the the Ordos region as a place to stage raids? 
Answer:
the Mongols