Question: Inter Milan, coached by legendary manager Giovanni Trappatoni, missed out on the scudetto title in 1991, but what trophy did they win?

Context paragraphs:
Luis Suárez (footballer, born 1935): Luis Suárez Miramontes (] ; born 2 May 1935), also known by the diminutive Luisito, is a Spanish former footballer and manager.  He played as a midfielder for Deportivo de La Coruña, CD España Industrial, FC Barcelona, Inter Milan, Sampdoria and Spain.  Suárez is regarded as one of Spain's greatest players; he was noted for his elegant, fluid, graceful style of play.  Nicknamed "El Arquitecto" (The Architect) he was noted for his perceptive passing and explosive shot and in 1960 he became the only Spanish-born player to be voted Ballon d'Or.  In 1964 he helped Spain win the European Championship.  Suarez originally achieved prominence as a creative inside forward or attacking midfielder for the great Barcelona team of the 1950s before he joined Inter Milan where he reached his prime as deep lying playmaker for the legendary "Grande Inter" team of the 1960s.  He played a pivotal role in the success Herrera's Inter Milan side, and was one of the primary creative forces in the squad, due to his ball skills, vision, and passing range.  He retired as a player in 1973, after three seasons at Sampdoria.

Inter Milan in European football: Inter Milan is an Italian association football club based in Milan, Lombardy.  The club was formed on 9 March 1908 to allow the foreign playes to play in Italy.  Inter played its first competitive match on 10 January 1910 against their cross-town rivals Milan, in which they lost 3–2.  The club won its very first title in 1910 – the 1909–10 Italian Football Championship.  Since then, the club has won further 17 league titles, along with seven Coppa Italia and five Supercoppa Italiana.  They have also been crowned champions of Europe on three occasions by winning two European Cups back-to-back in 1964 and 1965 and then another in 2010.  The club experienced the most successful period in their history from 2006 to 2010, in which it won five successive league titles, equaling the all-time record at that time, by adding three Italian Cups, three Italian Supercups, one UEFA Champions League and one FIFA Club World Cup.  During the 2009–10, Inter become the first and only Italian team to win the Treble and the second team to win five trophies in a calendar year.

List of Inter Milan players (25–99 appearances): Inter Milan is an Italian association football club based in Milan, Lombardy.  The club was formed on 9 March 1908 to allow the foreign players to play in Italy.  Inter played its first competitive match on 10 January 1909 against their cross-town rivals Milan, in which they lose 3–2.  The club won its very first title in 1910 – the 1909–10 Italian Football Championship.  Since then, the club has won further 17 league titles, along with seven Coppa Italias and five Supercoppa Italianas.  They have also been crowned champions of Europe on three occasions by winning two European Cups back-to-back in 1964 and 1965 and then another in 2010.  The club experienced the most successful period in their history from, 2006 to 2010, where the club won five successive league titles, equalling the all-time record, by adding three Italian Cups, three Italian Supercups, one UEFA Champions League and one FIFA Club World Cup.  During the 2009–10, Inter become the first Italian team to win the Treble and only the second team to win five trophies in a calendaric year, in 2010.

List of Inter Milan managers: Inter Milan is an Italian association football club based in Milan, Lombardy.  The club was formed on 9 March 1908 to allow the foreign playes to play in Italy.  Inter played its first competitive match on 10 January 1910 against their cross-town rivals Milan, in which they lost 3–2.  The club won its very first title in 1910 – the 1909–10 Italian Football Championship.  Since then, the club has won further 17 league titles, along with seven Coppa Italia and five Supercoppa Italiana.  They have also been crowned champions of Europe on three occasions by winning two European Cups back-to-back in 1964 and 1965 and then another in 2010.  The club experienced the most successful period in their history from 2006 to 2010, in which it won five successive league titles, equaling the all-time record at that time, by adding three Italian Cups, three Italian Supercups, one UEFA Champions League and one FIFA Club World Cup.  During the 2009–10, Inter become the first and only Italian team to win the Treble and the second team to win five trophies in a calendar year.

Trofeo Pirelli: The Pirelli Cup is an annual friendly football tournament sponsored by the Pirelli Tyre company.  The competition was started in 1996 as a single 90-minute friendly match between Pirelli-sponsored Inter Milan and another invited team.  Since 1996, 14 editions of the one-match tournament have been held.  The latest edition of the competition was held in 2010 in Baltimore, featuring Inter Milan and Manchester City.  The match ended 3-0 as Inter won the trophy.

Giovanni Trapattoni: Giovanni Trapattoni (] ; born 17 March 1939), sometimes popularly known as "Trap" or "Il Trap", is an Italian football manager and former footballer, considered the most successful club coach in the history of Serie A.  A former defensive midfielder, as a player he spent almost his entire club career with A.C. Milan, where he won two Serie A league titles (1961–62 and 1967–68), and two European Cups, in 1962–63 and 1968–69.  Internationally, he played for Italy, earning 17 caps and participating in the 1962 FIFA World Cup in Chile.

1993–94 Serie A: The 1993–94 Serie A was won by Milan, being the 14th title for the "rossoneri" and their third in succession, complemented by glory in the UEFA Champions League.  It was a disappointing season in the league for Inter Milan, whose 13th-place finish saw them avoid relegation by a single point, but they compensated for this by winning the UEFA Cup.  Piacenza, Udinese, Atlanta and Lecce were all relegated.  A.C. Milan's visit to struggling Reggiana at San Siro on 1 May 1994 came on a day when the sporting world was overshadowed with the death of racing driver Ayrton Senna in the 1994 San Marino Grand Prix, but the football world was focused on AC Milan's attempts to seal a 14th scudetto title.  It was a narrow 0–1 defeat for Reggiana, with a goal from Massimiliano Esposito, but enough to seal the "Scudetto".

List of Inter Milan players: Inter Milan is an Italian association football club based in Milan, Lombardy.  The club was formed on 9 March 1908 to allow the foreign playes to play in Italy.  Inter played its first competitive match on 10 January 1910 against their cross-town rivals Milan, in which they lost 3–2.  The club won its very first title in 1910 – the 1909–10 Italian Football Championship.  Since then, the club has won further 17 league titles, along with seven Coppa Italia and five Supercoppa Italiana.  They have also been crowned champions of Europe on three occasions by winning two European Cups back-to-back in 1964 and 1965 and then another in 2010.  The club experienced the most successful period in their history from 2006 to 2010, in which it won five successive league titles, equaling the all-time record at that time, by adding three Italian Cups, three Italian Supercups, one UEFA Champions League and one FIFA Club World Cup.  During the 2009–10, Inter become the first and only Italian team to win the Treble and the second team to win five trophies in a calendar year.

1990–91 Inter Milan season: Inter was thought to be a favourite for the Serie A title, having - between others - three world champions in their squad.  Well placed in the league, the side also reached the quarter-finals of the UEFA Cup after comebacks against Rapid Wien and Aston Villa.  Trapattoni's team managed to progress to the final, beating also Atalanta and Sporting Lisboa.  Lost hopes for the "Scudetto", due to losses from the Genoa sides in May, Inter saved the season by winning the UEFA cup.  The triumph was over fellow Italian side Roma, 2–1 on aggregate.

Camillo Achilli: Camillo Achilli (21 August 1921 – 14 June 1998) was a professional Italian footballer who played for Inter Milan and Genoa.  After retiring as a player in 1953, Achilli enjoyed a career as a coach, managing sides such as Lecco, Inter Milan and Palermo.  His son was Marco Achilli.

Supporting paragraphs: 1990–91 Inter Milan season Giovanni Trapattoni
Answer: UEFA cup