instruction:
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.
question:
Passage: In 2010, she joined Jorge Elbrecht of Brooklyn-based Violens to record a "sgin" of Justin Bieber's "Never Let You Go": "We went on YouTube to find a video among the highest ranks of hits, and came across 'Never Let You Go'. We went on to make what we call a 'sgin' (anagram of the word 'sing')an original song written specifically to synch into someone else's video on mute". Caroline shot and directed video for Violens' "It Couldn't Be Perceived". Polachek and Elbrecht collaborated again in 2014 on two singles, "I.V. Aided Dreams (feat. Caroline Polachek)" and "Full Mental Erase (feat. Caroline Polachek)". In 2012, she sang with Ice Choir (solo project of Kurt Feldman of The Pains of Being Pure at Heart) on the song "Everything Is Spoilt by Use" and directed/edited its official video. Caroline contributed vocals to Blood Orange's "Chamakay" (2013), collaborating with Blood Orange again on "Holy Will" (2018). In late 2013, Polachek wrote and produced "No Angel", which was featured on Beyonce's critically acclaimed fifth studio album, Beyonce. Thanks to this song, at the 57th Annual Grammy Awards, she received a Grammy Award nomination for Album of the Year. Polachek then collaborated with PC Music's, Danny L Harle in early 2016 on the single "Ashes of Love". Polachek collaborated with felicita throughout his album "Hej!" (PC Music 2018) including an arrangement of the Polish traditional song "Byl Sobie Krol" (released under the title "Marzipan"), and with Charli XCX on Pop 2 (2017) on tracks "Tears (feat. Caroline Polachek)" and "Delicious (feat. Tommy Cash).
Link Information: none Answer: none
answer:
How old was the artist with whom Polachek collaborated on the single "Ashes of Love"?

question:
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
answer:
How many years apart in age were Sweyn's sons?

question:
Passage: The first five stages took place in and around Andalusia in southern Spain; the 2014 Vuelta had also started there. The first stage was a team time trial along the coast from Puerto Banus to Marbella. The next four stages were fairly flat, although Stage 2 finished on a moderately difficult climb. The sixth stage started in Cordoba and finished in Sierra de Cazorla in Jaen on another moderately difficult climb. The seventh stage then returned to Andalusia for the first major difficulty of the race: the first-category summit finish at La Alpujarra. The route then continued along the eastern coast of Spain, with a medium-mountain seventh stage and another first-category summit finish at Benitachell on Stage 9. There was one more medium-mountain stage on Stage 10, taking the riders into the Province of Castellon. This was followed by a transfer that took the riders into Andorra for a three-day spell, beginning with the first rest day. The eleventh stage took place entirely in Andorra; though it was only in length, it included six categorised climbs, including a summit finish, and was described by Eusebio Unzue (the manager of the Movistar team) as "the toughest Vuelta stage that he has seen in more than 30 years". Stage 12 took the riders back into Spain for a fairly flat stage, before three consecutive stages with summit finishes. These took place in the mountains of Cantabria and Asturias and were followed by the race's second rest day. The final week of the race included no summit finishes: the first stage was a individual time trial in Burgos and was then followed by three mixed stages that took the riders nearer to the final stage of the race, a sprint stage in Madrid. For the first time, the race organisers also held a women's race on the same day as the final stage, using the same circuit. This race called La Madrid Challenge by La Vuelta was won by Shelley Olds.
Link Information: The seventh stage then returned to Andalusia for the first major difficulty of the race: the first-category summit finish at La Alpujarra. Answer: Alpujarra
answer:
Which location has a higher elevation, where the sixth stage finished or where the first category of the seventh stage finish?