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: The keel for Wacht was laid down in August 1886 at the AG Weser shipyard in Bremen. She was launched on 27 August 1887 and Vizeadmiral (Vice Admiral) Alexander von Monts, the chief of the Marinestation der Nordsee (North Sea Naval Station) christened the ship. In early 1888, she was transferred to Wilhelmshaven, where her armament was installed, and she was commissioned on 9 August to begin sea trials. These concluded on 13 December in Wilhelmshaven. She was temporarily assigned to the newly-created Reserve Division of the North Sea over the winter of 18881889 before being transferred to Kiel on 1 May to begin engine trials, after which she was assigned to the Maneuver Squadron. During training exercises with the squadron, Wacht suffered a burst boiler tube on 20 June that forced her to return to port for repairs. In early August, she joined the squadron for a visit to Britain, arriving back in Wilhelmshaven on 31 August. The fleet then conducted its annual large-scale maneuvers. After the maneuvers ended in September, Korvettenkapitan (KKCorvette Captain) Friedrich von Baudissin took command of the vessel.
Link Information: Bremen is a major cultural and economic hub of Northern Germany. Answer: Germany

A: In what country was the keel for the Wacht laid down?
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Q: Passage: Gorm's son, Harald Bluetooth succeeded his father as king and married possibly three times with Gunhild, Tove and Gyrid. Harald had a son named Sweyn Forkbeard. Sweyn succeeded his father as king and married Gunhild (Swietosawa of Poland). They had a son named Cnut the Great. Sweyn also ruled England in his lifetime and established the Danish Empire. When Sweyn died, his elder son Harald Svendsen became the King of Denmark, while England's former king, Ethelred, reclaimed the throne. Following Harald's death, his brother Cnut the Great became king, re-established the Danish North Sea Empire. He married Emma of Normandy with whom he had a son named Harthacnut. When Cnut died (and after the brothers of Harthacnut also had died), Harthacnut became king of Denmark and England. Upon his death, Edward the Confessor became ruler of England in 1042. Sweyn Forkbeard also had a daughter, Estrid, from whom all ruling kings and queens of Denmark after 1047 descend.
Link Information: When Sweyn died, his elder son Harald Svendsen became the King of Denmar Answer: 6

A: How many years apart in age were Sweyn's sons?
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Q: Passage: Nic Jones recorded his version of the song as Annachie Gordon on his 1977 album The Noah's Ark Trap (1977). Mary Black included it using the same name on the album Mary Black. Loreena McKennitt recorded it on Parallel Dreams (1989). Other versions include June Tabor's on Always (2005), Sharon Shannon's on Libertango (2004), John Wesley Harding's on Trad Arr Jones (1999) and Oliver Schroer's instrumental version on Celtic Devotion (1999). Sinead O'Connor also recorded a version on the Sharon Shannon Collection released in 2005, and Gabrielle Angelique recorded the song on her album Dance with the Stars (2006). The Unthanks 2009 album Here's the Tender Coming also contains a version. The earliest professional recording was by Berzilla Wallin on Old Love Songs and Ballads from the Big Laurel, North Carolina (1964).
Link Information: Nic Jones recorded his version of the song as Annachie Gordon on his 1977 Answer: 5

A:
How many years after Nic Jones recorded the song did Mary Black also record it?
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