In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Let me give you an example: Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lo during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
. Link Information: Operation Market Garden was a failed World War II military operation fought in the Netherlands from 17 to 25 September 1944. Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin?
The answer to this example can be: from 17 to 25 September 1944
Here is why: The passage describes the 704th's actions during Operation Market Garden, and the answer specifies when the operation happened.

OK. solve this:
Passage: Quentovic was a Frankish emporium in the Early Middle Ages that was located on the European continent close to the English Channel. The town no longer exists, but it was thought to have been situated near the mouth of the Canche River in what is today the French commune of Etaples. Archaeological discoveries led by David Hill in the 1980s found that the actual location of Quentovic was east of Etaples, in what is now the commune of La Calotterie. It was an important trading place for the Franks and its port linked the continent to England, specifically to the southeastern county of Kent. From what we know today, Quentovic was founded by a Neustrian king in the early 6th century. It was one of the two most prominent Frankish ports in the north (the other being Dorestad) until it was abandoned, probably in the 11th century. Merchants were drawn to this place because the number of trading posts at the time was limited. Quentovic was also the place where Anglo-Saxon monks would cross the English Channel on their pilgrimage to Rome. A lack of physical evidence, and the sudden disappearance of this emporium, make the town difficult to interpret. Some of the most important historical evidence on Quentovic comes from documents of taxation and especially through the town's minting of coinage. Coins minted during both the Merovingian and the Carolingian dynasties have been found.
Link Information: none Question: When did the tradition of Anglo-Saxon monks crossing the English Channel on pilgrimage to Rome begin?
Answer:
Answer: none