In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.

Example Input: Passage: Wyatt Frame, an executive with the pop music record label MegaRecords, is confronted on a private jet by boy band DuJour over a strange backing track they discovered on their recent single. Wyatt and the plane's pilot parachute out of the jet, leaving it to crash and "kill" the band. 
Wyatt lands outside of the town of Riverdale, and begins searching for a band to replace DuJour. He discovers struggling local rock band The Pussycats: lead vocalist and guitarist Josie McCoy, drummer Melody Valentine, and bassist Valerie Brown. The group accept Wyatt's immediate offer of a major record deal despite its seeming implausibility, and are flown to New York City with their manager Alexander, his sister Alexandra, and Josie's friend Alan M. The group is rebranded "Josie and the Pussycats", to Valerie's chagrin.
Meanwhile, MegaRecords CEO Fiona meets with world government representatives. She details how the United States government has conspired with the music industry to add subliminal messages as backing tracks to pop music to brainwash teenagers into buying consumer products. The government theorizes that the economy can be stimulated by channeling the disposable income of young people into trendy and expensive goods; music artists who discover the truth are "killed".
The band's first single is released, and due to subliminal messaging, is an instant success. Valerie begins to resent the attention the label gives Josie, while Melody's uncanny behavioral perception makes her suspicious of Fiona. Fiona orders Wyatt to kill Valerie and Melody before they uncover the conspiracy; they are sent to a fake appearance on Total Request Live where Carson Daly attempts to kill them, though they survive due to his incompetence. 
Question: Who discovered a strange backing track on their recent single?
Example Output: DuJour.

Example Input: Passage: The film begins in a parking lot in which a teenage filmmaker named Eric is attempting to document the faux-gangsta lifestyle enjoyed by Allison Lang and her boyfriend Toby's (Mike Vogel) gang of white upper-class teenagers living in the Pacific Palisades neighborhood. A brawl ensues between Toby's gang and another gang, which ends with both sides fleeing just before police arrive. Later that night, Toby's gang goes to a party at Eric's house, and Allison's relationship with Toby as well as her other friends Emily and Sam is further revealed. At the end of the party, Allison performs oral sex on her boyfriend.
The next day, Allison meets with her father, Stuart, at work to discuss family problems, the awkward conversation revealing the virtually non-existent relationship Allison has with her parents. Afterwards, she and her friends drive downtown into East LA, intent on buying marijuana, eventually encountering Mexican drug dealer Hector and his crew. Toby and Hector make a deal, but Toby believes that Hector did not sell him enough for what he paid, and attempts to confront Hector, who pulls a gun on him, humiliating him in front of his friends. Allison persuades Hector to leave Toby alone. 
Question: Where do the gangs have a brawl?
Example Output: parking lot.

Example Input: Passage: The Scottish economy of this period was dominated by agriculture and by short-distance, local trade. There was an increasing amount of foreign trade in the period, as well as exchange gained by means of military plunder. By the end of this period, coins were replacing barter goods, but for most of this period most exchange was done without the use of metal currency.Most of Scotland's agricultural wealth in this period came from pastoralism, rather than arable farming. Arable farming grew significantly in the "Norman period", but with geographical differences, low-lying areas being subject to more arable farming than high-lying areas such as the Highlands, Galloway and the Southern Uplands. Galloway, in the words of G. W. S. Barrow, "already famous for its cattle, was so overwhelmingly pastoral, that there is little evidence in that region of land under any permanent cultivation, save along the Solway coast". The average amount of land used by a husbandman in Scotland might have been around 26 acres. The native Scots favoured pastoralism, in that Gaelic lords were happier to give away more land to French and Middle English-speaking settlers, while holding on tenaciously to upland regions, perhaps contributing to the Highland/Galloway-Lowland division that emerged in Scotland in the later Middle Ages. The main unit of land measurement in Scotland was the davoch (i.e. "vat"), called the arachor in Lennox and also known as the "Scottish ploughgate". In English-speaking Lothian, it was simply ploughgate. It may have measured about 104 acres (0.42 km2), divided into 4 raths. Cattle, pigs and cheeses were among the chief foodstuffs, from a wide range of produce including sheep, fish, rye, barley, bee wax and honey.
David I established the first chartered burghs in Scotland, copying the burgher charters and Leges Burgorum (rules governing virtually every aspect of life and work) almost verbatim from the English customs of Newcastle-Upon-Tyne. Early burgesses were usually Flemish, English, French and German, rather than Gaelic Scots. The burgh's vocabulary was composed totally of either Germanic and French terms. The councils that ran individual burghs were individually known as lie doussane, meaning the dozen. 
Question: What is the main unit of land measurement in the country where pastoralism was the main source of agricultural wealth?
Example Output:
davoch.