Problem: Data compression:

A literature compendium for a large variety of audio coding systems was published in the IEEE Journal on Selected Areas in Communications (JSAC), February 1988. While there were some papers from before that time, this collection documented an entire variety of finished, working audio coders, nearly all of them using perceptual (i.e. masking) techniques and some kind of frequency analysis and back-end noiseless coding. Several of these papers remarked on the difficulty of obtaining good, clean digital audio for research purposes. Most, if not all, of the authors in the JSAC edition were also active in the MPEG-1 Audio committee.

Where were most of the authors in the JSAC edition?
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A: MPEG-1 Audio committee


Problem: For months each side had been building forward rifle pits and defensive positions, which resulted in many skirmishes. Artillery fire aiming to gain superiority over the enemy guns.:450–462 September saw the final assault. On 5 September, another French bombardment (the sixth) was followed by an assault by the French Army on 8 September resulting in the capture of the Malakoff by the French, and following their failure to retake it, the collapse of the Russian defences. Meanwhile, the British captured the Great Redan, just south of the city of Sevastopol. The Russians retreated to the north, blowing up their magazines and the city fell on 9 September 1855 after a 337-day-long siege.:106
Who took control of the Great Redan?
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Answer: the British


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Mary is also depicted as being present among the women at the crucifixion during the crucifixion standing near "the disciple whom Jesus loved" along with Mary of Clopas and Mary Magdalene,[Jn 19:25-26] to which list Matthew 27:56 adds "the mother of the sons of Zebedee", presumably the Salome mentioned in Mark 15:40. This representation is called a Stabat Mater. While not recorded in the Gospel accounts, Mary cradling the dead body of her son is a common motif in art, called a "pietà" or "pity".
In Matthew, who else besides Mary of Clopas and Mary Magdalene are with Mary at the Crucifixion?
A: Salome


Context and question: The site selected for the university was a hill known as Mount Oread, which was owned by former Kansas Governor Charles L. Robinson. Robinson and his wife Sara bestowed the 40-acre (16 ha) site to the State of Kansas in exchange for land elsewhere. The philanthropist Amos Adams Lawrence donated $10,000 of the necessary endowment fund, and the citizens of Lawrence raised the remaining cash by issuing notes backed by Governor Carney. On November 2, 1863, Governor Carney announced that Lawrence had met the conditions to get the state university, and the following year the university was officially organized. The school's Board of Regents held its first meeting in March 1865, which is the event that KU dates its founding from. Work on the first college building began later that year. The university opened for classes on September 12, 1866, and the first class graduated in 1873.
Who provided the minority of the money needed to secure the site of the University of Kansas?
Answer: unanswerable


Question: Since such mass (kinetic energies of particles, the energy of trapped electromagnetic radiation and stored potential energy of repulsive fields) is measured as part of the mass of ordinary matter in complex systems, the "matter" status of "massless particles" and fields of force becomes unclear in such systems. These problems contribute to the lack of a rigorous definition of matter in science, although mass is easier to define as the total stress–energy above (this is also what is weighed on a scale, and what is the source of gravity).[citation needed]
Is there an answer to this question: Mass is harder to define as being what?

Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The classical period of Greek civilization covers a time spanning from the early 5th century BC to the death of Alexander the Great, in 323 BC (some authors prefer to split this period into 'Classical', from the end of the Persian wars to the end of the Peloponnesian War, and 'Fourth Century', up to the death of Alexander). It is so named because it set the standards by which Greek civilization would be judged in later eras. The Classical period is also described as the "Golden Age" of Greek civilization, and its art, philosophy, architecture and literature would be instrumental in the formation and development of Western culture.
What did the Greeks do that made it possible for the expansion and growth of the opposite of the Eastern Civilization ?
A:
civilization, and its art, philosophy, architecture and literature would be instrumental in the formation and development of Western culture.