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.

Example Input: Passage: By 1970, Takemitsu's reputation as a leading member of avant-garde community was well established, and during his involvement with Expo '70 in Osaka, he was at last able to meet more of his Western colleagues, including Karlheinz Stockhausen. Also, during a contemporary music festival in April 1970, produced by the Japanese composer himself ("Iron and Steel Pavilion"), Takemitsu met among the participants Lukas Foss, Peter Sculthorpe, and Vinko Globokar. Later that year, as part of a commission from Paul Sacher and the Zurich Collegium Musicum, Takemitsu incorporated into his Eucalypts I parts for international performers: flautist Aurele Nicolet, oboist Heinz Holliger, and harpist Ursula Holliger.Critical examination of the complex instrumental works written during this period for the new generation of "contemporary soloists" reveals the level of his high-profile engagement with the Western avant-garde, in works such as Voice for solo flute (1971), Waves for clarinet, horn, two trombones and bass drum (1976), Quatrain for clarinet, violin, cello, piano and orchestra (1977). Experiments and works that incorporated traditional Japanese musical ideas and language continued to appear in his output, and an increased interest in the traditional Japanese garden began to reflect itself in works such as In an Autumn Garden for gagaku orchestra (1973), and A Flock Descends into the Pentagonal Garden for orchestra (1977).Throughout this apogee of avant-garde work, Takemitsu's musical style seems to have undergone a series of stylistic changes. Comparison of Green (for orchestra, 1967) and A Flock Descends into the Pentagonal Garden (1977) quickly reveals the seeds of this change. The latter was composed according to a pre-compositional scheme, in which pentatonic modes were superimposed over one central pentatonic scale (the so-called "black-key pentatonic") around a central sustained central pitch (F-sharp), and an approach that is highly indicative of the sort of "pantonal" and modal pitch material seen gradually emerging in his works throughout the 1970s. The former, Green (or November Steps II) written 10 years earlier, is heavily influenced by Debussy, and is, in spite of its very dissonant language (including momentary quarter-tone clusters), largely constructed through a complex web of modal forms. These modal forms are largely audible, particularly in the momentary repose toward the end of the work. Thus in these works, it is possible to see both a continuity of approach, and the emergence of a simpler harmonic language that was to characterise the work of his later period.
His friend and colleague Jo Kondo said, "If his later works sound different from earlier pieces, it is due to his gradual refining of his basic style rather than any real alteration of it.".
Example Output: What was the name of the person whose experiments and works that incorporated traditional Japanese musical ideas and language continued to appear in their output?

Example Input: Passage: The Hudson Valley Rail Trail is a paved 4-mile (6.4 km) eastwest rail trail in the town of Lloyd in Ulster County, New York, stretching from the Hudson River through the hamlet of Highland. The trail was originally part of the Poughkeepsie Bridge Route, a rail corridor that crossed the Hudson via the Poughkeepsie Bridge. Controlled by a variety of railroads throughout the 19th and 20th centuries, the bridge was damaged and became unusable after a 1974 fire. By the 1980s the corridor's then-owner, Conrail, had routed all rail traffic in the region north through Selkirk, and was eager to relieve itself of the bridge and adjoining rights-of-way. In 1984, it sold the entire property for one dollar to a felon who did not maintain it or pay taxes on it. The section of the corridor west of the Hudson was seized by Ulster County in 1991 and transferred to the town of Lloyd.
During the 1990s, a broadband utility seeking to lay fiber optic cable paid the town to pass through the former corridor. The town used part of its payment to pave the route and open it as a public rail trail in 1997. The creation of the trail was supported by a local Rotary club, which built a pavilion along the trail. The pavilion includes a donated antique caboose. While the trail originally ended at Route 4455, it was extended eastward between 2009 and 2010, intersecting Route 9W and continuing to the Poughkeepsie Bridge. The extension was paid for by stimulus funding.
The bridge, now a pedestrian walkway called Walkway Over the Hudson, connects the trail with the Dutchess Rail Trail to the east, creating a 30-mile (48 km) rail trail system that spans the Hudson. The trail is expected to be extended west, where it will border Route 299. As it passes through Highland, the trail is carried by several bridges, connects to four parking areas, and traverses a wetlands complex. The trail forms part of the proposed Empire State Trail.
Example Output: What is the full name of the structure that was damaged and became unusable after a fire in 1974?

Example Input: Passage: Arising form a moribund aviation company, in the 1970s, the new Canadair Challenger business jet on the drawing board was a risky proposition. Derived from a design by American inventor and aircraft developer Bill Lear, Canadair Chief Designer Harry Halton married a wide-body fuselage with a high performance ("supercritical") wing and state-of-the-art engines. With banks and the then federal Minister of Industry, Trade and Commerce Jean Chretien requiring 50 "firm orders", a Canadair sales team was dispatched to sell a "paper aircraft" with only sales brochures, scale models and a wooden mock-up to go on. The innovative Challenger design boasted industry-leading performance. It promised to be faster, cheaper to fly, and more comfortable than any other business jet.
With orders of 56 aircraft from North America, Europe and the Middle East, Canadair's top management, headed by Frederick Kearns, gave a "go" to the Challenger project. As the first prototype was completed, competitors touted their "off-the shelf" availability. Although months late, the Challenger was finally unveiled and prepared for its maiden flight, piloted by Canadair Chief Test Pilot Doug Adkins. After successful tests at the company plant in Montreal, the Challenger was flown to Mojave, California, to complete its arduous flight testing in order to obtain its certification for worldwide operation.
Example Output:
Who added to the American inventor's design for the Challenger?