In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Q: Passage: During the 1750s  Messiah was performed increasingly at festivals and cathedrals throughout the country. Individual choruses and arias were occasionally extracted for use as anthems or motets in church services, or as concert pieces, a practice that grew in the 19th century and has continued ever since. After Handel's death, performances were given in Florence (1768), New York (excerpts, 1770), Hamburg (1772), and Mannheim (1777), where Mozart first heard it. For the performances in Handel's lifetime and in the decades following his death, the musical forces used in the Foundling Hospital performance of 1754 are thought by Burrows to be typical. A fashion for large-scale performances began in 1784, in a series of commemorative concerts of Handel's music given in Westminster Abbey under the patronage of King George III. A plaque on the Abbey wall records that "The Band consisting of DXXV [525] vocal & instrumental performers was conducted by Joah Bates Esqr." In a 1955 article, Sir Malcolm Sargent, a proponent of large-scale performances, wrote, "Mr Bates ... had known Handel well and respected his wishes. The orchestra employed was two hundred and fifty strong, including twelve horns, twelve trumpets, six trombones and three pairs of timpani (some made especially large)." In 1787 further performances were given at the Abbey; advertisements promised, "The Band will consist of Eight Hundred Performers".In continental Europe, performances of Messiah were departing from Handel's practices in a different way: his score was being drastically reorchestrated to suit contemporary tastes. In 1786, Johann Adam Hiller presented Messiah with updated scoring in Berlin Cathedral. In 1788 Hiller presented a performance of his revision with a choir of 259 and an orchestra of 87 strings, 10 bassoons, 11 oboes, 8 flutes, 8 horns, 4 clarinets, 4 trombones, 7 trumpets, timpani, harpsichord and organ. In 1789, Mozart was commissioned by Baron Gottfried van Swieten and the Gesellschaft der Associierten to re-orchestrate several works by Handel, including  Messiah (Der Messias). Writing for a small-scale performance, he eliminated the organ continuo, added parts for flutes, clarinets, trombones and horns, recomposed some passages and rearranged others. The performance took place on 6 March 1789 in the rooms of Count Johann Esterházy, with four soloists and a choir of 12. Mozart's arrangement, with minor amendments from Hiller, was published in 1803, after his death. The musical scholar Moritz Hauptmann described the Mozart additions as "stucco ornaments on a marble temple". Mozart himself was reportedly circumspect about his changes, insisting that any alterations to Handel's score should not be interpreted as an effort to improve the music. Elements of this version later became familiar to British audiences, incorporated into editions of the score by editors including Ebenezer Prout.

A: What did Mozart hear in Mannheim?
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Q: Passage: Boise National Forest was created on July 1, 1908, from part of Sawtooth National Forest, and originally covered 1,147,360 acres (4,643.2 km2). By the Forest Reserve Act of 1891, the U.S. Congress granted the U.S. President the authority to establish forest reserves out of Public Domain Lands that were subject to disposal (homesteads, sales, etc.) administered by the General Land Office, which had been placed under the authority of the U.S. Department of the Interior in 1849. With the passage of the Transfer Act of 1905, forest reserves were transferred to the U.S. Department of Agriculture in the newly created U.S. Forest Service. Present-day Boise National Forest was first protected as part of two forest reserves by proclamations issued by President Theodore Roosevelt: Sawtooth Forest Reserve (created on May 29, 1905, and expanded on November 6, 1906) and Payette Forest Reserve (created on June 3, 1905). After forest reserves were renamed national forests in 1908, Boise National Forest was split from Sawtooth National Forest into an independent national forest. On April 1, 1944, the entirety of what was then Payette National Forest was transferred to Boise National Forest, and simultaneously Weiser and Idaho national forests were combined to reestablish the present-day Payette National Forest, which is to the north of Boise National Forest. In 1933 the Boise Basin Experimental Forest was created on 8,740 acres (35.4 km2) of the forest near Idaho City to study the management of ponderosa pine. The Lucky Peak Nursery was established in 1959 to produce trees for planting on burned or logged lands on the national forests of the Intermountain region.After the creation of the Civilian Conservation Corps (CCC) in 1933, nine camps and eight subcamps were set up in Boise National Forest, but the number of camps was reduced from 1934 until the program was closed in 1942. Work conducted by the CCC included fire suppression, fish habitat improvement, and construction of guard houses, fire lookouts, campgrounds, roads, and trails, among other facilities.

A: After the name of forest reserves were changed, what were two national forests were combined into?
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Q: Passage: The geography and ecology of the Everglades involve the complex elements affecting the natural environment throughout the southern region of the U.S. state of Florida. Before drainage, the Everglades were an interwoven mesh of marshes and prairies covering 4,000 square miles (10,000 km2). The Everglades is simultaneously a vast watershed that has historically extended from Lake Okeechobee 100 miles (160 km) south to Florida Bay (around one-third of the southern Florida peninsula), and many interconnected ecosystems within a geographic boundary. It is such a unique meeting of water, land, and climate that the use of either singular or plural to refer to the Everglades is appropriate. When Marjory Stoneman Douglas wrote her definitive description of the region in 1947, she used the metaphor "River of Grass" to explain the blending of water and plant life.
Although sawgrass and sloughs are the enduring geographical icons of the Everglades, other ecosystems are just as vital, and the borders marking them are subtle or nonexistent. Pinelands and tropical hardwood hammocks are located throughout the sloughs; the trees, rooted in soil inches above the peat, marl, or water, support a variety of wildlife. The oldest and tallest trees are cypresses, whose roots are specially adapted to grow underwater for months at a time. The Big Cypress Swamp is well known for its 500-year-old cypresses, though cypress domes can appear throughout the Everglades. As the fresh water from Lake Okeechobee makes its way to Florida Bay, it meets salt water from the Gulf of Mexico; mangrove forests grow in this transitional zone, providing nursery and nesting conditions for many species of birds, fish, and invertebrates. The marine environment of Florida Bay is also considered part of the Everglades because its sea grasses and aquatic life are attracted to the constant discharge of fresh water.
These ecological systems are always changing due to environmental factors. Geographic features such as the Western Flatwoods, Eastern Flatwoods, and the Atlantic Coastal Ridge affect drainage patterns. Geologic elements, climate, and the frequency of storms and fire are formative processes for the Everglades. They help to sustain and transform the ecosystems in the Shark River Valley, Big Cypress Swamp, coastal areas and mangrove forests. Ecosystems have been described as both fragile and resilient. Minor fluctuations in water levels have far-reaching consequences for many plant and animal species, and the system cycles and pulses with each change.

A:
What was the last name of the person who used the metaphor "River of Grass" to explain the blending of water and plant life?
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