Question: What all-time leading NFL rusher was one of "The Triplets"?
Context: Adrian Lewis Peterson (born March 21, 1985) is an American football running back for the New Orleans Saints of the National Football League (NFL).  He played college football at Oklahoma and was drafted by the Minnesota Vikings seventh overall in the 2007 NFL Draft.  Peterson set the NCAA freshman rushing record with 1,925 yards as a true freshman during the 2004 season.  As a unanimous first-team All-American, he became the first freshman to finish as the runner-up in the Heisman Trophy balloting.  Peterson finished his college football career as the Sooners' third all-time leading rusher. Morten Andersen (born August 19, 1960), nicknamed "The Great Dane", is a Danish former American football kicker and All-American at Michigan State University.  He is the all-time leader in games played in the NFL at 382; in addition, he also holds the distinction of being the all-time leading scorer in NFL history, and when he retired he was the all-time leading scorer for two different rival teams; the New Orleans Saints, with whom he spent 13 seasons, and the Atlanta Falcons, with whom he spent a combined eight seasons. Raymell Mourice Rice (born January 22, 1987) is a former American football running back who played his entire professional career with the Baltimore Ravens of the National Football League (NFL).  He played college football for Rutgers, and was drafted by the Ravens in the second round of the 2008 NFL Draft.  He is ranked as the Ravens' second all-time leading rusher behind Jamal Lewis, and is also second in rushing attempts and touchdowns, and third in combined touchdowns.  He won Super Bowl XLVII with the team at the conclusion of the 2012 NFL season. Frederick George "Fred" Jackson (born February 20, 1981) is an American football running back who is currently with Team East of The Spring League.  He played college football at Coe College.  After going undrafted in 2003 and playing in NFL Europe, Jackson spent nine seasons with the Buffalo Bills, becoming their third all-time leading rusher.  As of the 2015 season, he was the oldest running back in the NFL. Lester Junior "Dick" Hoerner (July 25, 1922 – December 11, 2010) was an American football player.  He played fullback for the University of Iowa in 1942 and 1946 and for the Los Angeles Rams from 1947 to 1951.  He helped lead the Rams to three consecutive National Football League championship games from 1949 to 1951, played for the 1951 Los Angeles Rams team that won the 1951 NFL Championship Game, and was selected to play in the inaugural 1951 Pro Bowl.  He was the Rams' all-time leading rusher at the end of his playing career with the team.  He concluded his professional football career as a member of the Dallas Texans in 1952. Ahman Rashad Green ( ; born February 16, 1977) is a former American football running back who played twelve seasons in the National Football League (NFL).  He is the all-time leading rusher for the Green Bay Packers.  He was drafted by the Seattle Seahawks in the 3rd round of the 1998 NFL Draft.  He played college football at Nebraska. Michael Jerome Irvin (born March 5, 1966) is a retired American football player, actor, and sports commentator.  Irvin played college football at the University of Miami, then for the Dallas Cowboys of the National Football League (NFL) for his entire pro athletic career (1988-1999), which ended due to a spinal cord injury.  Irvin was nicknamed "The Playmaker" due to his penchant for making big plays in big games during his college and pro careers.  He is one of three key Cowboys offensive players who helped the team attain three Super Bowl wins: he is known as one of "The Triplets" along with Troy Aikman and Emmitt Smith.  He is also a former broadcaster for ESPN's "Sunday NFL Countdown" and currently an analyst for NFL Network.  In 2007, he was selected to the Pro Football Hall of Fame. Emmitt James Smith III (born May 15, 1969) is a former college and professional American football running back who became the National Football League's (NFL) all-time leading rusher during his fifteen seasons in the league during the 1990s and 2000s. Michael E. "Tony" Davis (born January 21, 1953) is a former American football running back in the National Football League.  Davis played both I-back and fullback for new Head Coach Tom Osborne at University of Nebraska-Lincoln.  He was Osborne's first 1,000 yard rusher and when he left the Cornhuskers, he was the school's all-time leading rusher.  Davis was a 4th round selection (106th overall pick) out of Nebraska by the Cincinnati Bengals in the 1976 NFL Draft.  Davis played six seasons for the Bengals (1976–1978) and the Tampa Bay Buccaneers (1979–1981).  In 1977, Davis was selected the Bengals team MVP by a vote of players and fans.  Davis also played one season for the Boston Breakers of the USFL. Dalvin Cook (born August 10, 1995) is an American football running back for the Minnesota Vikings of the National Football League (NFL).  He played college football at Florida State, where he finished his career as the school's all-time leading rusher.  Cook was drafted by the Vikings in the second round of the 2017 NFL Draft.
Answer: Emmitt Smith