Question: When was the 2014 event in Aspen held in which Amy Sheehan competed? 

full_context: Document 1: Kristi Leskinen: Kristi Leskinen (born February 10, 1981 in Uniontown, Pennsylvania) is an American freestyle skier. At Winter X Games IX, Leskinen won a bronze medal in the Women's Superpipe. Kristi was the first woman ever to pull a rodeo 720—two rotations, head pointed to the earth. She was named one of the Twenty Greatest Adventure Sport Athletes of today by Faces Magazine in fall of 2005. She appeared on the cover of "Powder" magazine's Photo Annual in 2004. 
Document 2: Tia-Clair Toomey: Tia-Clair Toomey (born 22 July 1993) is an Australian weightlifter and CrossFit Games athlete. She competed in the women's 58 kg event at the 2016 Summer Olympics and came in 14th. Also competing in the CrossFit Games, she was the winner of the 2017 CrossFit Games after being the runner-up in 2015 and 2016.
Document 3: Winter X Games XV: Winter X Games XV (styled as Winter X Games Fifteen in the official logo) were held from January 26 to January 30, 2011, in Aspen, Colorado. They are the 10th consecutive Winter X Games to be held in Aspen. The events were broadcast on ESPN.
Document 4: Winter X Games IX: Winter X Games IX were held from January 29, 2005 to February 1, 2005 in Aspen, Colorado. They were the 4th consecutive Winter X Games to be held in Aspen. Television coverage of Winter X Games XI was broadcast on ESPN and ABC, primarily hosted by Sal Masekela and Todd Harris.
Document 5: X Games Los Angeles 2013: The X Games Los Angeles 2013 was an action sporting event which took place from August 1–4, 2013 in Los Angeles, California, United States. Venues for the event included the Staples Center, Irwindale Event Center, and the streets near L.A. Live. It was the first year that events were held in Irwindale.
Document 6: Winter X Games XVIII: Winter X Games XVIII (re-titled Winter X Games Aspen '14; styled as Winter X Games Eighteen in the official logo) were held from January 23 to January 26, 2014, in Aspen, Colorado. They were the 13th consecutive Winter X Games to be held in Aspen. The events were broadcast on ESPN.
Document 7: Amanda Sørensen: Amanda Sørensen (born November 18, 1985 in Skanderborg) is a retired Danish amateur BMX cyclist. Having started her sporting career at the age of seven and been admitted to the Danish national cycling team since 2002, Sorensen has mounted numerous Nordic regional titles and top-eight finishes in BMX racing at the European Championships, and admittedly, participated in more than 300 BMX circuits across Australia, the United States, Brazil, and Europe. Before retiring from the sport in September 2009, Sorensen also represented her nation Denmark at the 2008 Summer Olympics, and has been training with personal and head coach Christian Munk Poulsen for Skanderborg BMX Klub throughout her cycling career.
Document 8: Winter X Games XI: Winter X Games XI were held from January 25, 2007 to January 28, 2007 in Aspen, Colorado. They were the 6th consecutive Winter X Games to be held in Aspen. Television coverage of Winter X Games XI was broadcast on ESPN and ABC, primarily hosted by Sal Masekela and Todd Harris. Final attendance for the four-day event was 76,150.
Document 9: Greta Small: Greta Small (born 16 October 1995) is an Australian alpine skier. She first started skiing at Mt Hotham with MHRS before her parents sold their family home to help fund her skiing adventures. Her main training base now is in the Tirol region in Austria where she trains with Race Centre Benni Raich. Her first major international appearance was at the Innsbruck 2012 Youth Olympic Games. In Small's first senior World championships she placed 25th in the Super Combined at 17 years of age. The 2013–14 Northern Hemisphere winter was a first of many things for Small. She competed at the Solden opening World Cup Giant Slalom followed by three World Cup events in Beaver Creek, Colorado, and the 2014 Winter Olympics in Sochi, Russia. Small placed 15th in the Alpine Combined which was Australia's best placing for 12 years and she was the second-youngest in the field by 8 days.
Document 10: Chloe Kim: Chloe Kim (Korean: 김선, born April 23, 2000) is an elite American snowboarder, currently sponsored by Target. While being too young to compete in the 2014 Sochi Winter Olympics Kim earned silver in superpipe in the 2014 Winter X Games, coming behind Kelly Clark. In 2015 Chloe won Gold in the super pipe event in the Winter X Games beating Kelly Clark. With this win, at age 14, Kim became the youngest gold medalist until she lost this record to Kelly Sildaru who won gold in 2016 at the age of 13. In the 2016 X Games, she became the first person under the age of 16 to win three gold medals (and thus the first such person to win back-to-back gold medals) at an X Games. At that year's U.S. Snowboarding Grand Prix, she became the first woman to land back-to-back 1080 spins in a snowboarding competition. She scored a perfect 100 points, and is believed to be the second rider ever to do so, after Shaun White.
Document 11: Winter X Games XII: Winter X Games XII were held from January 24 to January 27, 2008 in Aspen, Colorado. They were the 7th consecutive Winter X Games to be held in Aspen. Television coverage of Winter X Games XII was broadcast on ESPN and ABC, primarily hosted by Sal Masekela and Todd Harris. Final attendance for the four-day event was 72,500.
Document 12: Sho Kashima: Sho William Kashima (born November 1, 1986) is an American freestyle skier from El Paso, Texas. Sho currently resides in Park City, Utah. Sho was considered a threat to qualify for the U.S. Olympic team in Vancouver, but missed the 2010 Games after suffering a knee injury in January of that year, ending his season.
Document 13: Amorette Wild: Amorette Wild (also known as Amy Wild) (born 10 August 1989) is an Australian netball player in the ANZ Championship, playing for the Queensland Firebirds. Wild previously played with the NSW Swifts From 2009 - 2010. She has also played in the Australian Fastnet team in Liverpool 2011. She graduated from Westfields Sports High School in 2007. A Fairfield City Netball Association junior, Amorette (pronounced Am-oar-ray) has come through the ranks to represent New South Wales at the 17/U, 19/U and 21/U age groups. Quiet by nature, Amorette rose to prominence during the Australian Netball League and DOOLEYS State League, where she played an integral role in her teams’ success, including the Netball NSW Waratahs maiden ANL victory in 2011.Since making her ANZ Championship debut in 2009, Amorette has gone on to become an integral part of the NSW Swifts 'moving' shooting circle, earning a nomination for ANZ Championship Best Young Player in 2012. Amorette’s journey to the NSW Swifts is a unique one – she had her first taste of elite netball when she was a ball girl for the Swifts as a teenager before going on to be a member of the Swifts squad in the former national league at the age of 17. At 23 years of age, Amorette will be suiting up for the NSW Swifts for her fifth season in 2013. Amorette played her 25th ANZ Championship game when she took the court at wing attack against the Northern Mystics in Round 10 of the 2013 ANZ Championship at Sydney Olympic Park Sports Centre. After the Swifts season in 2013 Amorette made up her mind and moved north to the Queensland and play for the Firebirds alongside 2013 premiership winning rookie Stephanie Puopolo. Amorette Spent 1 year with the Sydney Swifts in the Commonwealth Bank Trophy, That year being the last year of the competition 2007.
Document 14: Amy Sheehan: Amy Sheehan (born 26 October 1986) is an Australian freestyle skier. She competed at the FIS Freestyle World Ski Championships 2013 in Voss. In 2014, she competed at the Winter X Games XVIII in Aspen, and the 2014 Winter Olympics in Sochi, in women's halfpipe.
Document 15: Winter X Games XIX: Winter X Games XIX (re-titled Winter X Games Aspen '15; styled as Winter X Games Nineteen in the official logo) were held from January 21 to January 25, 2015, in Aspen, Colorado. They were the 14th consecutive Winter X Games to be held in Aspen. The events were broadcast on ESPN. The games featured participants from the United States, Canada, Norway, Sweden, Japan, New Zealand, France, Switzerland, Italy, and Australia.
ground_truth: January 23 to January 26, 2014