Problem: Yale is organized into fourteen constituent schools: the original undergraduate college, the Yale Graduate School of Arts and Sciences, and twelve professional schools. While the university is governed by the Yale Corporation, each school's faculty oversees its curriculum and degree programs. In addition to a central campus in downtown New Haven, the University owns athletic facilities in western New Haven, including the Yale Bowl, a campus in West Haven, Connecticut, and forest and nature preserves throughout New England. The university's assets include an endowment valued at $25.6 billion as of September 2015, the second largest of any educational institution.The Yale University Library, serving all constituent schools, holds more than 15 million volumes and is the third-largest academic library in the United States.
How much isn't Yale's endowment worth?
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Answer: unanswerable

Problem: By the late 1950s, the motion picture business was again changing. The combination of the studio/theater-chain break-up and the rise of television saw the reduced audience size for cinema productions. The Music Corporation of America (MCA), then predominately a talent agency, had also become a powerful television producer, renting space at Republic Studios for its Revue Productions subsidiary. After a period of complete shutdown, a moribund Universal agreed to sell its 360-acre (1.5 km) studio lot to MCA in 1958, for $11 million, renamed Revue Studios. MCA owned the studio lot, but not Universal Pictures, yet was increasingly influential on Universal's product. The studio lot was upgraded and modernized, while MCA clients like Doris Day, Lana Turner, Cary Grant, and director Alfred Hitchcock were signed to Universal Pictures contracts.
How much did Universal sell its lot to MAC for?
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Answer: unanswerable

Problem: The United States Mint produces Proof Sets specifically for collectors and speculators. Silver Proofs tend to be the standard designs but with the dime, quarter, and half dollar containing 90% silver. Starting in 1983 and ending in 1997, the Mint also produced proof sets containing the year's commemorative coins alongside the regular coins. Another type of proof set is the Presidential Dollar Proof Set where four special $1 coins are minted each year featuring a president. Because of budget constraints and increasing stockpiles of these relatively unpopular coins, the production of new Presidential dollar coins for circulation was suspended on December 13, 2011, by U.S. Treasury Secretary Timothy F. Geithner. Future minting of such coins will be made solely for collectors.
Other than the Silver Proof set, what other type of Proof set exists?
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Answer:
Presidential Dollar Proof Set