Question: what year did the Sampdoria home venue stadium open 

full_context: Document 1: 1984–85 U.C. Sampdoria season: U.C. Sampdoria recorded its best league season since 1960-61, thanks to a fourth place-finish. President Mantovani had surprised the football world by signing Liverpool stalwart Graeme Souness to the squad, and it paid off, with Souness adapting quickly to Italian football, also helping the team to win the 1985 edition of Coppa Italia, which was the first ever title for the club. The defensive line, with Moreno Mannini, Pietro Vierchowod and Antonio Paganin among the crew, was the main reason for the success, Sampdoria conceding just 23 goals in 30 league matches played. Quite a few of the players were still with the club when it finally won the league title in 1991.
Document 2: S.S.C. Napoli: Società Sportiva Calcio Napoli, commonly referred to as Napoli (] ), is a professional Italian football club based in Naples, Campania. Formed in 1926, the club plays in Serie A, the top flight of Italian football. The club has won Serie A twice, and been runners-up six times, the Coppa Italia five times, the Supercoppa Italiana twice, and the 1988–89 UEFA Cup.
Document 3: Stadio Giuseppe Moccagatta: Stadio Giuseppe Moccagatta is a multi-use stadium in Alessandria, Italy. It is currently used mostly for football matches and is the home ground of U.S. Alessandria Calcio 1912. The stadium holds 10,040.
Document 4: Stadio Romeo Neri: Stadio Romeo Neri is a multi-use stadium in Rimini, Italy. The stadium has a capacity of 9,768 and is largely used for football as the home of A.C. Rimini 1912. The stadium itself was named after Italian gymnast Romeo Neri, the first citizen of Rimini to participate in the Olympic Games - in both Amsterdam (1928) and Los Angeles (1932).
Document 5: 1985–86 U.C. Sampdoria season: U.C. Sampdoria fell short of repeating its successful 1984-85 season, ending up in 12th position in the league. It did almost defend its cup title successfully, but despite a 2-1 victory in the first leg, it lost to Roma in the return leg. Sampdoria's European adventure did not live up to expectations, it not even reaching the quarter finals of the Cup Winners' Cup.
Document 6: Stadio Mirabello: Stadio Mirabello was a multi-use stadium in Reggio Emilia, Italy. It was used mostly for football matches and hosted the home matches of A.C. Reggiana 1919. The stadium was able to hold 17,000 people and opened in 1912. In 1995 when Stadio Città del Tricolore was opened as "Stadio Giglio" it ceased to host A.C. Reggiana 1919, Brescello, a lower league soccer team, played in Stadio Mirabello for some years, until it become the main Rugby stadium in Reggio Emilia. At the end of the 2007/2008 rugby season the agreement between the city of Reggio Emilia and the local rugby team ended.
Document 7: 1991–92 U.C. Sampdoria season: U.C. Sampdoria came nowhere to defending its inaugural Serie A title from 1990-91, but was extremely close to an ever bigger honour, only losing out on extra time to Barcelona in the European Cup final. The end result was 1-0 to the Spaniards, thanks to Ronald Koeman's free kick.
Document 8: 1989–90 Serie A: 1989–90 of the Serie A was another dominant year for Napoli, with Diego Maradona being among the leading goalscorers in Serie A (16 goals), behind Marco van Basten of Milan (19 goals) and Roberto Baggio of Fiorentina (17 goals). But while Baggio's Fiorentina narrowly avoided relegation, Maradona's Napoli won their second Serie A title in four seasons, while Van Basten helped Milan retain the European Cup as compensation for their failure to win the Serie A title, having finished two points behind Napoli. Demoted to Serie B for 1990–91 were Udinese, Verona, Cremonese and Ascoli.
Document 9: 1988–89 Coppa Italia: The 1988–89 Coppa Italia was the 41st Coppa Italia, the major Italian domestic cup. The competition was won by Sampdoria, who defeated SSC Napoli 4–1 on aggregate in a two-legged final played at Stadio San Paolo (Napoli's home venue) and Stadio Giovanni Zini (neutral venue due to unavailability of Sampdoria's Stadio Luigi Ferraris home venue).
Document 10: 1989 European Cup Final: The 1989 European Cup Final was a football match held at the Camp Nou in Barcelona, Spain on 24 May 1989, that saw Milan of Italy defeat Steaua București of Romania 4–0. Two goals each from Marco van Basten and Ruud Gullit gave the Italian side their third victory in the competition.
Document 11: Stadio Gaetano Bonolis: Stadio Gaetano Bonolis (formerly Stadio Comunale, also known as Stadio di Piano d'Accio) is a multi-use stadium in Teramo, Italy. It is currently used mostly for football matches and concerts. It is the home ground of Teramo Calcio. The stadium holds 7,498.
Document 12: Stadio Ennio Tardini: Stadio Ennio Tardini, commonly referred to as just Il Tardini, is a football stadium in Parma, Italy, located near the centre of Parma, between the town centre and the city walls. It is the home of Parma Calcio 1913. The stadium was built in 1923 and was named after one of Parma's former presidents, Ennio Tardini. The stadium is the nineteenth largest football stadium in Italy and the second largest in Emilia–Romagna with a capacity of 22,352 spectators. The stadium is the sixth oldest Italian football ground still in use.
Document 13: Stadio Gino Pistoni: Stadio Gino Pistoni is a multi-use stadium in Ivrea, Italy. It is currently used mostly for football matches and is the home ground of A.S.D. Calcio Ivrea. The stadium holds 3,500 people.
Document 14: 1987–88 U.C. Sampdoria season: U.C. Sampdoria won its second cup trophy in just three years, defeating Torino in the final, thanks to a 3-2 aggregate victory. Gianluca Vialli scored ten goals to become club top scorer, as Sampdoria finished fourth in the domestic league.
Document 15: Stadio Luigi Ferraris: The Stadio Comunale Luigi Ferraris, also known as the Marassi from the name of the neighbourhood where it is located, is a multi-use stadium in Genoa, Italy. It opened in 1911 and is one of the oldest stadiums still in use for football and other sports in Italy. Aside from football, the stadium has hosted meetings of rugby in the Italian national team and, more rarely, some concerts.
ground_truth: It opened in 1911