Problem: Heian period:

The Fujiwara rulers failed to maintain adequate police forces, which left robbers free to prey on travelers. This is implicitly illustrated in novels by the terror that night travel inspired in the main characters. The shoen system enabled the accumulation of wealth by an aristocratic elite; the economic surplus can be linked to the cultural developments of the Heian period and the "pursuit of arts". The major Buddhist temples in Heian-kyo and Nara also made use of the shoen. The establishment of branches rurally and integration of some Shinto shrines within these temple networks reflects a greater "organizational dynamism".

Buddhist temples in which two cities made use of the shoen system?
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A: Heian-kyo and Nara

Problem: Standard Dutch uses three genders to differentiate between natural gender and three when discerning grammatical gender. But for most non-Belgian speakers, the masculine and feminine genders have merged to form the common gender (de), while the neuter (het) remains distinct as before. This gender system is similar to those of most Continental Scandinavian languages. As in English, but to a lesser degree, the inflectional grammar of the language (e.g., adjective and noun endings) has simplified over time.
Apart from the common gender in non-Belgian Dutch, what other gender do speakers use?
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Answer: neuter

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Public expenditure of the GDP was less in 200205 than in 1991. Public education is theoretically free and mandatory for under-16-year-olds, but in practice, expenses exist. Net primary enrollment rate was 44% in 2005, much less than the 79% in 1991. The country has universities. Education between ages six and sixteen is compulsory. Pupils who complete six years of primary school and seven years of secondary school obtain a baccalaureate. At the university, students can obtain a bachelor's degree in three years and a master's after four. Marien Ngouabi Universitywhich offers courses in medicine, law and several other fieldsis the country's only public university. Instruction at all levels is in French, and the educational system as a whole models the French system. The educational infrastructure has been seriously degraded as a result of political and economic crises. There are no seats in most classrooms, forcing children to sit on the floor. Enterprising individuals have set up private schools, but they often lack the technical knowledge and familiarity with the national curriculum to teach effectively. Families frequently enroll their children in private schools only to find they cannot make the payments.
When is education not compulsory?
A: unanswerable

Context and question: The first Grand Lodge, the Grand Lodge of London and Westminster (later called the Grand Lodge of England (GLE)), was founded on 24 June 1717, when four existing London Lodges met for a joint dinner. Many English Lodges joined the new regulatory body, which itself entered a period of self-publicity and expansion. However, many Lodges could not endorse changes which some Lodges of the GLE made to the ritual (they came to be known as the Moderns), and a few of these formed a rival Grand Lodge on 17 July 1751, which they called the "Antient Grand Lodge of England." These two Grand Lodges vied for supremacy until the Moderns promised to return to the ancient ritual. They united on 27 December 1813 to form the United Grand Lodge of England (UGLE).
Lodges that could not endorse the GLE were later called what?
Answer: the Moderns

Question: Yaroslav, known as "the Wise", struggled for power with his brothers. A son of Vladimir the Great, he was vice-regent of Novgorod at the time of his father's death in 1015. Subsequently, his eldest surviving brother, Svyatopolk the Accursed, killed three of his other brothers and seized power in Kiev. Yaroslav, with the active support of the Novgorodians and the help of Viking mercenaries, defeated Svyatopolk and became the grand prince of Kiev in 1019. Although he first established his rule over Kiev in 1019, he did not have uncontested rule of all of Kievan Rus' until 1036. Like Vladimir, Yaroslav was eager to improve relations with the rest of Europe, especially the Byzantine Empire. Yaroslav's granddaughter, Eupraxia the daughter of his son Vsevolod I, Prince of Kiev, was married to Henry III, Holy Roman Emperor. Yaroslav also arranged marriages for his sister and three daughters to the kings of Poland, France, Hungary and Norway. Yaroslav promulgated the first East Slavic law code, Russkaya Pravda; built Saint Sophia Cathedral in Kiev and Saint Sophia Cathedral in Novgorod; patronized local clergy and monasticism; and is said to have founded a school system. Yaroslav's sons developed the great Kiev Pechersk Lavra (monastery), which functioned in Kievan Rus' as an ecclesiastical academy.
Is there an answer to this question: What year did Yaroslav's sons develop the Kiev Pechersk Lavra?

Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Stephen Hawking in particular has addressed a connection between time and the Big Bang. In A Brief History of Time and elsewhere, Hawking says that even if time did not begin with the Big Bang and there were another time frame before the Big Bang, no information from events then would be accessible to us, and nothing that happened then would have any effect upon the present time-frame. Upon occasion, Hawking has stated that time actually began with the Big Bang, and that questions about what happened before the Big Bang are meaningless. This less-nuanced, but commonly repeated formulation has received criticisms from philosophers such as Aristotelian philosopher Mortimer J. Adler.
Which philosopher has praised Hawkings formulation?
A:
unanswerable