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'.

Ex Input:
Passage: Free-agent goaltender Jeff Hackett was signed from the Boston Bruins to replace Roman Cechmanek and challenge backup Robert Esche for the number one spot in 200304, but Hackett was forced to retire in February due to vertigo. During the course of the season, serious injuries suffered by both Jeremy Roenick (broken jaw) and Keith Primeau (concussion) in February forced the Flyers to trade for the Chicago Blackhawks' Alexei Zhamnov, who filled in well and kept the Flyers afloat. Esche entrenched himself as starter and remained in that position even after the Flyers re-acquired Sean Burke from the Phoenix Coyotes, as the Flyers clinched the Atlantic Division title over the New Jersey Devils on the last day of the season.
Link Information: none Question: What are the symptoms of the condition that forced Hackett to retire?

Ex Output:
Answer: none

Ex Input:
Passage: For the rest of her long career, Ancona served in a variety of roles, both in the main fleet and in Italy's colonial empire. After the end of the war, the government lost confidence in the fleet and drastically reduced the naval budget. The cuts were so severe that the fleet had great difficulty in mobilizing its ironclad squadron to attack the port of Civitavecchia in September 1870, as part of the wars of Italian unification. Instead, the ships were laid up and the sailors conscripted to man them were sent home. Some time after 1866, the ship was rebuilt as a central battery ship, with most of her guns located in a central, armored casemate. Two other guns were placed in the bow as chase guns, with a third mounted as a stern chaser. At around 1871, her armament was also revised, to two guns in the bow and eight 8in guns, four on each broadside and the last in the stern. Later, her armament was changed again, to eight guns, six guns, four quick firing (QF) guns, and two Hotchkiss revolver cannons. Ancona was stricken from the naval register in 1903 and then broken up for scrap.
Link Information: 1867 Garibaldi made a second attempt to capture Rome, but the papal army, strengthened with a new French auxiliary force, defeated his poorly armed volunteers at Mentana. Subsequently, a French garrison remained in Civitavecchia until August 1870, Question: How long did the war where Ancona attacked the port of Civitavecchia last?

Ex Output:
Answer: 3

Ex Input:
Passage: In the U.S, his debut film role was in the war film Black Hawk Down (2001), playing Medal of Honor recipient Gary Gordon. He then played Detective John Amsterdam in the short-lived Fox television series New Amsterdam (2008), as well as appearing as Frank Pike in the 2009 Fox television film Virtuality, originally intended as a pilot. He became widely known for his role as Jaime Lannister in the HBO fantasy series Game of Thrones, for which he received Primetime Emmy Award nominations for Outstanding Supporting Actor in a Drama Series in 2018 and 2019. He is a UNDP Goodwill Ambassador, drawing public attention to critical issues such as gender equality and climate change.
Link Information: Virtuality is a television pilot co-written by Ronald D. Moore and Michael Taylor and directed by Peter Berg Question: Who directed the television film in which Coster-Waldau appeared in the rold of Frank Pike>

Ex Output:
Answer: Peter Berg