Question: When was the last time adelaide was in a grand final?

Disambiguated questions and answers:
context: This was Richmond's first grand final appearance in 35 years since 1982 (the club having last won a premiership in 1980) and Adelaide's third appearance in the grand final (the club having won their last two grand finals in 1997 and 1998). This marked the first grand final since the inaugural VFL grand final 119 years earlier where neither team had any players to have previously played in a grand final.
question: When was the last time Adelaide won the AFL Grand Final?
short_answers: 1998
wikipage: 2017 AFL Grand Final
context: The 2016 A-League Grand Final was the eleventh A-League Grand Final, and was played on 1 May 2016, at Adelaide Oval to determine the 2015–16 A-League Champion. The match was contested by the two winning finals series semi-finalists, Adelaide United and Western Sydney Wanderers who finished the 2015–16 A-League season in first and second position respectively.
question: When was the last time Adelaide was in the A-League Grand Final?
short_answers: 2016
wikipage: 2016 A-League Grand Final
context: The 2017 AFL Grand Final was an Australian rules football game contested between the Adelaide Football Club and the Richmond Football Club at the Melbourne Cricket Ground on 30 September 2017. It was the 121st annual grand final of the Australian Football League (formerly the Victorian Football League) staged to determine the premiers for the 2017 AFL season. The match, attended by 100,021 spectators, was won by Richmond by a margin of 48 points, marking the club's eleventh premiership and first since 1980. Richmond's Dustin Martin was awarded the Norm Smith Medal as the best player on the ground. 
question: When was the last time Adelaide was in the AFL Grand Final?
short_answers: 2017
30 September 2017
wikipage: 2017 AFL Grand Final

Long-form answers:
knowledge: content: The Adelaide Football Club, nicknamed the Crows, is a professional Australian rules football club based in Adelaide, South Australia.
wikipage: Adelaide Football Club
content: The AFL Grand Final is an annual Australian rules football match, staged to determine the premiers for that year's Australian Football League (AFL) season.
wikipage: AFL Grand Final
long_answer: The Adelaide Football Club, nicknamed the Crows, is a professional Australian rules football club based in Adelaide, South Australia. The AFL Grand Final is an annual Australian rules football match, staged to determine the premiers for that year's Australian Football League (AFL) season. The last time Adelaide was the A-League Grand Final in 2016. The last time Adelaide won the AFL Grand Final was 1998. The last time Adelaide was in the AFL Grand Final was 30 September 2017.
knowledge: content: The AFL Grand Final is an Australian rules football match to determine the premiers for the Australian Football League (AFL) season.
wikipage: AFL Grand Final
content: The A-League Grand Final is the final match of the A-League season, the culmination of the finals series, determining the champions of the tournament.
wikipage: List of A-League Men seasons Grand Finals
long_answer: There are several Grand Finals. The last time Adelaide was in the A-League Grand Final was in 2016, while Adelaide was last in the AFL Grand Final in 2017 and last won the AFL Grand Final in 1998. The AFL Grand Final is a football match to determine the premiers for the Australian Football League season, and the A-League Grand Final is the final match of the A-League season.