In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.

[Q]: Passage: John Wemyss was knighted in 1618 and created a Baronet of Nova Scotia in 1625. This included a charter to the barony of New Wemyss in that province of Canada. He was later advanced to the title of Earl of Wemyss and the patent was presented to him at Dunfermline personally by Charles I of England. John Wemyss was also a Privy Councillor, High Commissioner to the General Assembly of the Church of Scotland, and one of the Committee of the Estates. John Wemyss died in 1649 and was succeeded by his only son, David Wemyss, 2nd Earl of Wemyss. David Wemyss, the second earl spent a lifetime nurturing the resources of his estate, in particular his salt and coal mines. He also built a large harbour at Methil, Fife and greatly extended Wemyss Castle where he entertained Charles II of England in 1650 and 1651. He died in 1679 and was predeceased by his son so the estates fell to his daughter, Margaret Wemyss, 3rd Countess of Wemyss. Margaret married her cousin, James Wemyss, Lord Burntisland. Their son was David Wemyss, 4th Earl of Wemyss who succeeded his mother in 1705.
 Link Information: He died in 1679 Answer: 39
[A]: How old was Wemyss' son when he died in 1679?


[Q]: Passage: The northern segment of the fault runs from Hollister, through the Santa Cruz Mountains, epicenter of the 1989 Loma Prieta earthquake, then up the San Francisco Peninsula, where it was first identified by Professor Lawson in 1895, then offshore at Daly City near Mussel Rock. This is the approximate location of the epicenter of the 1906 San Francisco earthquake. The fault returns onshore at Bolinas Lagoon just north of Stinson Beach in Marin County. It returns underwater through the linear trough of Tomales Bay which separates the Point Reyes Peninsula from the mainland, runs just east of Bodega Head through Bodega Bay and back underwater, returning onshore at Fort Ross. (In this region around the San Francisco Bay Area several significant "sister faults" run more-or-less parallel, and each of these can create significantly destructive earthquakes.) From Fort Ross, the northern segment continues overland, forming in part a linear valley through which the Gualala River flows. It goes back offshore at Point Arena. After that, it runs underwater along the coast until it nears Cape Mendocino, where it begins to bend to the west, terminating at the Mendocino Triple Junction.
 Link Information: The Gualala River is a river on the northern coast of California. Most of the river is in Sonoma County, but a portion is in Mendocino County. The headwaters of the 40 mi river ( Answer: 40
[A]: How long is the Gualala River?


[Q]: Passage: Eisner had used some of Digital Domain's processors to render images for his film, and the company suggested he meet with some commercial production houses. Thus began his career as a director of commercials, and after only a year-and-a-half, Eisner had directed 14 high-profile spots. His first commercial was Budweiser's Powersurge, which aired during the 1997 Super Bowl. He also took the helm for Rold Gold pretzels' "Comrades" starring Jason Alexander, which featured Pretzel Boy on a rescue mission to the Mir space station. Eisner's two anti-smoking spots for the California Department of Health Services, "Gala Event" and "Funeral", were selected as Best Spots in back-to-back issues of Adweek. In addition, Eisner's "Mad Dog" for Coors's Zima aired during the Seinfeld finale and was chosen by USA Today "Ad Meter" as the #1 spot. He has also done commercials for Sony, Sega and Coca-Cola.
 Link Information: The series ended with a seventy-five-minute episode (cut to 60 minutes in syndication, in two parts) written by co-creator and ex-executive producer Larry David, which aired on May 14, 1998. Answer: 1998
[A]:
What year did Eisner's "Mad Dog" ad for Zima originally air?