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'.
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Question: 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 2003–04, 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?

Answer: Answer: none


Question: Passage: Jonathan Smith (born January 17, 1971), known professionally as Lil Jon, is an American rapper, songwriter, record producer and DJ based in Atlanta, Georgia. He was the lead frontman of the multi-platinum selling rap group, Lil Jon & The East Side Boyz and was instrumental in the emergence of the sub hip/hop genre Crunk. He is credited with bringing the genre into mainstream success, producing Top 10 Billboard Hot 100 singles "Get Low," "Goodies," "Cyclone," "Freek-a-Leek," and "Yeah!" "Yeah!" won a Grammy Award for Best Rap/Sung Performance. Lil Jon is also a frequent collaborator with friend and fellow rapper Pitbull. In 2013, Lil Jon collaborated with DJ Snake and released the EDM multi-platinum hit, "Turn Down For What," that won Billboard Music Award for Top Dance/Electronic Song. The music video for the single, released in 2014, was nominated for a Grammy Award for Best Music Video, and has been viewed over 900 million times on YouTube as of October 2019. As of 2016, Lil Jon is listed as one of the Top Billboard Music Award Winners of All Time.
 Link Information:  2005 Grammy Awards Question: In what year did Lil Jon win an award for Best Rap/Sung Performance?

Answer: Answer: 2005


Question: Passage: June McCarroll (June 30, 1867 – March 30, 1954) is credited by the California Department of Transportation with the idea of delineating highways with a painted line to separate lanes of highway traffic, although this claim is disputed by the Federal Highway Administration and the Michigan Department of Transportation as two Michigan men painted centerlines before her. She was born in Lewis County, New York. She was a nurse (later a physician) with the Southern Pacific Railroad in the early 20th century. According to a historic marker in Indio, California, after a near-collision in her Model T in 1917, "She personally painted the first known stripe in California on Indio Boulevard, then part of U.S. Route 99, during 1917."
 Link Information: By 1996, years of financial problems had dropped Southern Pacific's mileage to 13715 mi Question: How long is the railway the nurse worked for in the early 1900s?

Answer:
Answer: 13715 mi