Question: The Kentucky–Vanderbilt football rivalry is an American college football rivalry between the Kentucky Wildcats football team of the University of Kentucky and Vanderbilt Commodores football team of Vanderbilt University, this rivalry is Kentucky's second longest behind which college sports rivalry between the University of Kentucky Wildcats and the University of Tennessee Volunteers?
Context: The Kentucky–Tennessee rivalry is a college sports rivalry between the University of Kentucky Wildcats and the University of Tennessee Volunteers.  The rivalry between these two Southeastern Conference (SEC) schools, located about 173 mi apart, dates to their first college football game in 1893, and has continued across all sports, with the men's basketball series gaining particular attention in recent years. The Sewanee–Vanderbilt football rivalry was an American college football rivalry between the Sewanee Tigers and Vanderbilt Commodores.  They were both founding members of the Southern Intercollegiate Athletic Association (SIAA), the Southern Conference, and the Southeastern Conference (SEC).  Both teams' histories feature some powerhouses of early Southern football, e.g. 1899 Sewanee Tigers football team and 1906 Vanderbilt Commodores football team.  It was the oldest of Vanderbilt's rivalries; dating back to 1891 when Vanderbilt played its second ever football game and Sewanee played its first.  Vanderbilt leads the series 40–8–4.  It used to be claimed as the oldest rivalry in the south, older than the "South's Oldest Rivalry" between North Carolina and Virginia.  Usually played towards the end of the season on Thanksgiving Day, the two teams have not met again since 1944. The Tennessee–Vanderbilt football rivalry is an American college football rivalry between the Vanderbilt Commodores and Tennessee Volunteers.  They are both founding members of the Southeastern Conference (SEC).  Vanderbilt and Tennessee have played 111 times since 1892.  Tennessee leads the all-time series 75–31–5. The 2013 Vanderbilt Commodores football team represents Vanderbilt University during the 2013 NCAA Division I FBS football season.  The Commodores play their seven home games at Vanderbilt Stadium at Dudley Field in Nashville, Tennessee, which has been Vanderbilt football's home stadium since 1922.  The 2013 team is coming off back-to-back bowls for the first time in school history.  The 2012 season was the best win pct since 1955 (.692) the nine wins was the most since 1915, and the 5 SEC wins was the most since 1935.  The 2012 season ended with the current longest win streak in the SEC, needless to say this was one of the best seasons in Vanderbilt football history.  The 2013 team was headed by James Franklin who was in his 3rd and final year at Vanderbilt.  It marked the Commodores 123rd overall season, 80th as a member of the Southeastern Conference (SEC) and its 22nd within the SEC Eastern Division.  For the third straight year Vanderbilt had made it to a bowl game the game was the first played after December 31 of the same year of the season.  Vandy defeated Houston Cougars in the BBVA Compass Bowl 41–24.  Vanderbilt finished with 9 wins back to back for the first time in school history, also for the first time was ranked in the top 25 of AP and Coaches polls in back-to-back years. The 2011 Vanderbilt Commodores football team represented Vanderbilt University during the 2011 NCAA Division I FBS football season.  The Commodores played their seven home games at Vanderbilt Stadium at Dudley Field in Nashville, Tennessee, which has been Vanderbilt football's home stadium since 1922.  The team's head coach was James Franklin, who was in his first year at Vanderbilt.  Hired at Vanderbilt on December 17, 2010, he was previously the offensive coordinator and "head coach in waiting" at the University of Maryland.  Vanderbilt has been a member of the Southeastern Conference (SEC) since the league's inception in 1932, and has participated in the conference's Eastern Division since its formation for the 1992 season.  Vanderbilt completed the 2011 regular season with an overall record of 6–6 and a mark of 2–6 in conference play, finishing in a tie with Kentucky for fourth place in the SEC East.  They were invited to the Liberty Bowl where they were defeated by Cincinnati 24–31 to finish the season 6–7.  2011.  The seniors of the 2011 Vanderbilt football team became the first class in program history to qualify for two bowl game's while at the school.  Vanderbilt had only been to bowls in 1955 VS Auburn, 1974 VS Texas Tech, 1982 VS Air Force, and 2008 VS Boston College. The Georgia–Vanderbilt football rivalry is an American college football rivalry between the Georgia Bulldogs and Vanderbilt Commodores.  Both universities are founding members of the Southeastern Conference (SEC), and currently members of the SEC's Eastern Division with a total of 76 meetings.  This rivalry is both Georgia and Vanderbilt's fourth longest football rivalry.  Georgia leads the series 55–20–2. The Ole Miss–Vanderbilt football rivalry is an American college football rivalry between the Ole Miss Rebels football team of the University of Mississippi and Vanderbilt Commodores football team of Vanderbilt University.  The Rebels are the Commodores' second-longest, continuous football rivalry. The Kentucky–Vanderbilt football rivalry is an American college football rivalry between the Kentucky Wildcats football team of the University of Kentucky and Vanderbilt Commodores football team of Vanderbilt University.  The rivalry between these two schools, located about 181 mi apart, dates to their first meeting in 1896.  They are founding members of the Southeastern Conference (SEC), and are currently members of the SEC's Eastern Division with a total of 88 meetings.  This rivalry is Kentucky's second longest behind Tennessee and Vanderbilt's third behind Ole Miss and Tennessee.  Kentucky leads the series 43–42–4. The 2009 Vanderbilt Commodores football team represented Vanderbilt University during the 2009–10 college football season.  The team's head coach was Bobby Johnson, who served his eighth season as the Commodores' head coach.  Vanderbilt has been a member of the Southeastern Conference (SEC) since the league's inception in 1932, and has participated in that conference's Eastern Division since its formation in 1992.  The Commodores played their six home games at Vanderbilt Stadium at Dudley Field in Nashville, Tennessee, which has been Vanderbilt football's home stadium since 1922.  The Commodores finished the season 2–10 and 0–8 in SEC play. The 2012 Vanderbilt Commodores football team represented Vanderbilt University during the 2012 NCAA Division I FBS football season.  (variously "VU" "Vandy" Vanderbilt "Dores") The Commodores played their six home games at Vanderbilt Stadium at Dudley Field in Nashville, Tennessee, which has been Vanderbilt football's home stadium since 1922.  The team's head coach was James Franklin, who is in his second year at Vanderbilt.  Vanderbilt has been a member of the Southeastern Conference (SEC) since the league's inception in 1932, and has participated in the conference's Eastern Division since its formation for the 1992 season.  On November 11, 2012 Vandy became bowl eligible in back to back years for the first time in its 123-year football history.  This was the first time since 1935 that Vandy won five SEC games in a year and the first time in 30 years that they won at home against Tennessee.  Vanderbilt finished the year with the longest current SEC winning streak.  For the first time since 1948, Vanderbilt finished the season with a top 25 ranking.
Answer: Kentucky–Tennessee rivalry