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

Context paragraphs:
1980–81 Sheffield Shield season: The 1980–81 Sheffield Shield season was the 79th season of the Sheffield Shield, the domestic first-class cricket competition in Australia.  It started on 17 October 1980 and finished on 9 March 1981.  Going into the final round of matches, New South Wales, Western Australia and Queensland were all in a position to win the Shield.  It would be Western Australia, who found form in the second half of the season with four straight victories, who would emerge victorious, drawing against Queensland to secure its eighth championship.

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.

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.

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.

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.

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.

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.

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.

1919–20 Sheffield Shield season: The 1919–20 Sheffield Shield season was the 24th season of the Sheffield Shield, the domestic first-class cricket competition of Australia.  New South Wales won the championship by virtue of finishing with a better average.  First-class cricket had resumed in Australia for the 1918-19 season, but the Sheffield Shield was not contested.

1905–06 Sheffield Shield season: The 1905–06 Sheffield Shield season was the 14th season of the Sheffield Shield, the domestic first-class cricket competition of Australia.  New South Wales won the championship.

Supporting paragraphs: 2013–14 Sheffield Shield season 2013–14 Ashes series
Answer: cricket