Question: What sport is involved in both the 2013-14 Sheffield Shield season and 2013-14 Ashes series?

full_context: Document 1: The Gabba: The Brisbane Cricket Ground, commonly known as the Gabba, is a major sports stadium in Brisbane, the capital of Queensland, Australia. The nickname Gabba derives from the suburb of Woolloongabba, in which it is located.
Document 2: 2010–11 Ashes series: The 2010–11 Ashes series (known as the Vodafone Ashes Series for sponsorship reasons) was played in Australia as part of the England cricket team's tour of Australia during the 2010–11 cricket season. Five Tests were played from 25 November 2010 to 7 January 2011. England won the series 3–1 and retained the Ashes, having won the previous series in 2009 by two Tests to one.
Document 3: 2017–18 Sheffield Shield season: The 2017–18 Sheffield Shield season will be the 116th season of the Sheffield Shield, the domestic first-class cricket competition in Australia. It is scheduled to start on 26 October 2017 and finish on 26 March 2018. The opening round of matches will be played as day/night fixtures and the first three rounds of matches will take place before the Ashes series. Victoria are the defending champions.
Document 4: 2014–15 Sheffield Shield season: The 2014–15 Sheffield Shield season was the 113th season of the Sheffield Shield, the domestic first-class cricket competition of Australia. It was held after the conclusion of the Matador BBQs One-Day Cup and included a break halfway through for the entirety of the Big Bash League. Trials for day/night Tests with the pink ball continued from the previous season. This season introduced a new bonus point system based on the runs scored and wickets taken in the first 100 overs of both teams' first innings. Due to Australia and New Zealand hosting the 2015 Cricket World Cup, several matches in the later rounds could not be held at the usual home grounds of the teams.
Document 5: Australian cricket team in England in 1981: The tour by the Australian cricket team in England in 1981 included the 51st Ashes series of Test matches between Australia and England. Despite having been 1–0 down after two Tests, England won the next three Tests to finish 3–1 victors (with two draws), thus retaining the Ashes. The series is popularly known as Botham's Ashes, owing to the remarkable performances of Ian Botham with both bat and ball.
Document 6: 2013–14 Ashes series: The 2013–14 Ashes series, known for sponsorship reasons as the Commonwealth Bank Ashes Series, was a Test cricket series between England and Australia. The five venues for the series were the Gabba, the Adelaide Oval, the WACA Ground, the Melbourne Cricket Ground and the Sydney Cricket Ground.
Document 7: 2015 Cricket World Cup: The 2015 Cricket World Cup (officially known as ICC Cricket World Cup 2015) was the 11th Cricket World Cup, jointly hosted by Australia and New Zealand from 14 February to 29 March 2015. Australia defeated New Zealand by 7 wickets to win their fifth ICC Cricket World Cup. Fourteen teams played 49 matches in 14 venues, with Australia staging 26 games at grounds in Adelaide, Brisbane, Canberra, Hobart, Melbourne, Perth and Sydney while New Zealand hosted 23 games in Auckland, Christchurch, Dunedin, Hamilton, Napier, Nelson and Wellington.
Document 8: 1913–14 Sheffield Shield season: The 1913–14 Sheffield Shield season was the 22nd season of the Sheffield Shield, the domestic first-class cricket competition of Australia. New South Wales won the championship.
Document 9: 2015–16 Sheffield Shield season: The 2015–16 Sheffield Shield season was the 114th season of the Sheffield Shield, the domestic first-class cricket competition in Australia. The season began after the conclusion of the Matador BBQs One-Day Cup, and included a break halfway through to allow for the Big Bash League. Trials for day/night Tests with a pink ball continued, having been introduced during the previous season. All of the matches for rounds one and seven of the tournament were played as day/night games. Victoria won their second consecutive title, defeating South Australia by 7 wickets in the final at Gliderol Stadium. Travis Head was named player of the series for his 721 runs and 9 wickets during the season. Ben Dunk of Tasmania was the leading run-scorer, while Joe Mennie from South Australia took the most wickets.
Document 10: 2015 Ashes series: The 2015 Ashes was a series of Test cricket matches played between England and Australia for The Ashes. The venues were Sophia Gardens (Cardiff), Lord's (London), Edgbaston (Birmingham), Trent Bridge (Nottingham), and The Oval (London). Australia were the defending holders of the Ashes going into the series, having won in 2013–14. England won the series 3–2, regaining the Ashes after taking an unassailable lead with victory in the fourth Test.
Document 11: English cricket team in Australia in 1987–88: The England national cricket team visited Australia in January 1988 and played one Test match at the Sydney Cricket Ground against the Australia national cricket team. The Test match was drawn and the teams also played a Limited Overs International (LOI) at the Melbourne Cricket Ground, won by Australia. England were in Australia as part of the country's Bicentenary celebrations of 1988. The Ashes were not at stake in the one-off Bicentennial Test.
Document 12: 2010–11 Sheffield Shield season: The 2010–11 Sheffield Shield season was the 109th season of the Sheffield Shield, the first-class domestic cricket competition of Australia. The season began on 8 October 2010, and ended on 21 March 2011 at the Bellerive Oval, Hobart, with the Tasmanian Tigers winning their second shield.
Document 13: 2013–14 Sheffield Shield season: The 2013–14 Sheffield Shield season was the 112th season of the Sheffield Shield, the domestic first-class cricket competition of Australia. It was held after the conclusion of the Ryobi One-Day Cup and included a break halfway through for the entirety of the Big Bash League. As a part of Cricket Australia's campaign for day/night Tests, it included three day/night matches, played with the pink ball. The separation of the tournaments meant that players in the national Test squad only played two or three Shield matches before the first Test of the 2013–14 Ashes series.
Document 14: 1974–75 Ashes series: The 1974–75 Ashes series consisted of six cricket Test matches, each match lasted five days with six hours of play each day and eight ball overs. It formed part of the MCC tour of Australia in 1974–75 and the matches outside the Tests were played in the name of the Marylebone Cricket Club. Ian Chappell's Australians won the series 4–1 and "brutally and unceremoniously wrenched the Ashes" from Mike Denness's England team. It was Australia's first series victory over England for ten years and the experience proved popular as 777,563 spectators came through the gates and paid nearly a million Australian dollars for the privilege. For the first time the first day of the Third Test at Melbourne was held on Boxing Day in an Ashes series, now a cricketing tradition.
Document 15: 2013 Ashes series: The 2013 Ashes series was a series of Test cricket matches contested between England and Australia for the Ashes. It formed part of the 2013 Australian tour of England, which also included the 2013 ICC Champions Trophy, five One Day Internationals and two Twenty20 Internationals.
ground_truth: cricket