Question: William Frederick Truax, is a former professional American football tight end in the National Football League (NFL) from 1964 to 1973 for the Los Angeles Rams and the Dallas Cowboys, following the 1970 NFL season, Truax was traded by the Rams to the Cowboys for wide receiver Lance Rentzel, a former American football flanker, in which organization?

full_context: Document 1: Billy Truax: William Frederick Truax (born July 15, 1943) is a former professional American football tight end in the National Football League (NFL) from 1964 to 1973 for the Los Angeles Rams and the Dallas Cowboys. He played in high school at Holy Cross in New Orleans and college football at Louisiana State University and was drafted in the second round of the 1964 NFL draft. Following the 1970 NFL season, Truax was traded by the Rams to the Cowboys for wide receiver Lance Rentzel. He was part of the Cowboys' Super Bowl VI championship team in 1971.
Document 2: Brian Bosworth: Brian Keith Bosworth (born March 9, 1965), nicknamed "The Boz," is a former American professional football player who played as a linebacker for the Seattle Seahawks in the National Football League (NFL). Bosworth played college football for the University of Oklahoma, and was a two-time consensus All-American. He gained fame and notoriety through his flamboyant personality, controversial comments about the National Collegiate Athletic Association (NCAA) and radical hair cuts. Bosworth was less successful in the NFL and injuries forced him to retire after three seasons.
Document 3: Billy Martin (tight end): Jake William "Billy" Martin (born October 27, 1942) is a former American football tight end in the National Football League for the Chicago Bears, the Atlanta Falcons, and the Minnesota Vikings. He played college football at Georgia Tech and was drafted in the second round (twenty-first overall selection) of the 1964 NFL Draft. Martin was subsequently selected by the Atlanta Falcons in the 1966 NFL Expansion Draft.
Document 4: Max Truex: Max Edwin Truex (b. November 4, 1935 Warsaw, Indiana, d. March 24, 1991 Milton, Massachusetts) was an American long distance runner. He was a two-time Olympian, running the 10,000 metres at the 1956 and 1960 Olympics. He also was a two-time United States champion in the 6 mile run, the imperial equivalent and added a 3-mile championship in 1962 (though he actually finished second to New Zealander Murray Halberg). The diminutive 5' 5" Truex was called a seemingly tireless running machine.
Document 5: Tommy McDonald (American football): Thomas Franklin McDonald (born July 26, 1934) is a former American football flanker in the National Football League (NFL), where he played for the Philadelphia Eagles, Dallas Cowboys, Los Angeles Rams, Atlanta Falcons, and Cleveland Browns. He played college football for the Oklahoma Sooners football team. He is a member of the Pro Football Hall of Fame and College Football Hall of Fame.
Document 6: Trent Williams: Trent Williams (born July 19, 1988) is an American football offensive tackle for the Washington Redskins of the National Football League (NFL). He played college football at Oklahoma, and was recognized as an All-American. He was considered one of the best tackle prospects available for the 2010 NFL Draft, and was drafted fourth overall by the Redskins.
Document 7: Billy Sims: Billy Ray Sims (born September 18, 1955) is a former American college and professional football player who was a running back in the National Football League (NFL) for five seasons during the 1980s. Sims played college football for the University of Oklahoma, where he was a two-time consensus All-American, and won the Heisman Trophy in 1978. He was the first overall pick in the 1980 NFL Draft, and played professionally for the NFL's Detroit Lions. Sims was the last Oklahoma player taken Number 1 overall in the NFL Draft until quarterback Sam Bradford was taken first in the 2010 NFL Draft. He was given the nickname "Kung Fu Billy Sims" by ESPN's Chris Berman, after a game where the Detroit Lions played the Houston Oilers. In the NFL Films highlight, rather than be tackled during a rushing attempt, Sims ran at, jumped, and, while fully airborne, kicked Oilers Cornerback Steve Brown in the head.
Document 8: Wendell Tucker: Wendell Edward Tucker (born September 4, 1943) is a former professional American football player who played wide receiver for four seasons for the Los Angeles Rams. Tucker spent most of his first season on the "taxi-squad" while learning behind the Rams' starting flanker Bernie Casey. Tucker saw action in 10 of the team's 14 games in 1968 (catching only 7 passes but 4 of them went for touchdowns), and then became the starting flanker after Casey's retirement. The 1969 season would prove to be his most productive as, playing opposite wide receiver Jack Snow, he caught 38 passes for 629 yards and 7 touchdowns, including a 93 yarder vs. the 49ers for the Coastal Division champion Rams. Tucker returned in 1970 but was hampered by injuries and caught only 12 passes in 12 games. In May 1971, Tucker was traded along with Billy Truax to the Dallas Cowboys for receiver Lance Rentzel. However, unable to regain his trademark speed because of a knee injury, Tucker retired before the start of the 1971 season.
Document 9: Fred Hageman: Fred John Hageman (born June 30, 1937 in Bunkie, Louisiana) is a former American football linebacker in the National Football League for the Washington Redskins. He played college football at the University of Arkansas and University of Kansas, and was drafted in the 2nd round in 1959 by the Oakland Raiders but did not report and returned to Kansas to finish his undergraduate degree and play out his senior season where he was a 2 time All Big 8 selection as a center and middle linebacker. He was a Tri-Captain and played in 4 post season games including the College All-Star game with numerous All Americans. Was drafted in the 7th round of the 1960 NFL Draft by the New York Giants and was immediately traded to Washington for cash and a high draft pick. He was the "Tribe's" defensive leader and starting middle linebacker upon reporting to camp. He was a runner-up for Rookie of the Year as a middle linebacker and played more minutes than any other player in the NFL in 1961. After his first stellar season, he was moved to starting Center where he played at an elite level. He was traded to the Chicago Bears in 1965, where he was injured in a pre-season game. Although urged to return by many, Fred returned to Kansas and earned his master's degree in Education. He went on to a very successful business career. The "gentle giant" at a huge 6 foot 5 and 255 pounds of solid muscle with world class speed, Fred was named as Kansas University's "Center of the Century" and was named to its first team "All-Time KU Football Team" along with the likes of Gayle Sayers, John Hadl and other NFL greats. Known as "Pappy" to many, he led KU's team, to a #2 Ranking and a Big 8 Championship in 1960. Some believe the teams he led in 1959 and 1960, along with John Hadl, were the best in KU's history. Fred was enshrined in the Batesville, Arkansas Area Sports Hall of Fame in 1992. He was the first All-State Athlete at Batesville, H.S.
Document 10: Lance Rentzel: Thomas Lance Rentzel (born October 14, 1943) is a former American football flanker in the National Football League (NFL) for the Minnesota Vikings, Dallas Cowboys and the Los Angeles Rams. He played college football at the University of Oklahoma.
Document 11: Lee Roy Selmon: Lee Roy Selmon (October 20, 1954 – September 4, 2011) was an American football player and college athletics administrator. He played college football as a defensive tackle at the University of Oklahoma, the youngest of three Selmon brothers to play football there.
Document 12: Ross Coyle: Charles Ross Coyle (born March 23, 1937) is a former American football player who played one season with the Los Angeles Rams of the National Football League (NFL). He was drafted by the Rams in the 20th round of the 1959 NFL Draft. He played college football for the Oklahoma Sooners of the University of Oklahoma and attended Marlow High School in Marlow, Oklahoma. Coyle was also a member of the Toronto Argonauts and Calgary Stampeders of the Canadian Football League.
Document 13: Harry Schuh: Harry Frederick Schuh (September 25, 1942 – May 20, 2013) was an American football player. He was an All-American tackle at the University of Memphis in 1963 and 1964. He was the third player drafted overall in the 1965 American Football League draft, after Joe Namath and Larry Elkins. He played for the American Football League's Oakland Raiders from 1965 through 1969 as the starting right tackle, winning the AFL Championship in 1967 and playing in the Second AFL-NFL World Championship Game. Schuh was an AFL Western Division All-Star in 1967, an AFL All-League tackle in 1969, and an AFC selection for the AFC-NFC Pro Bowl in 1970 as a member of the NFL's Raiders. But he was traded before the 1971 season for his replacement at right tackle, Bob Brown, an eventual member of the Pro Football Hall of Fame. Schuh finished his career with the Green Bay Packers. He was a member of the Raiders' All-Time Team.
Document 14: Billy Taylor (running back, born 1956): Billy Taylor (born July 6, 1956) is a former professional American football player who was selected by the New York Giants in the fourth round of the 1978 NFL Draft. A 6'0", 215-lb. running back from Texas Tech, Taylor played for five NFL seasons as a running back and kick returner. He spent his first three seasons as a member of the Giants, and spent his final two split between the Giants, the New York Jets, and the Los Angeles Raiders. As the starting running back for the Giants, he led the team in rushing in 1979 and 1980. His best season was in 1979, when he started all 16 games, carrying the ball 198 times for 700 yards and catching it another 28 times for 253 yards with 11 total touchdowns. The Jets picked him up after the Giants waived him in 1981, but they cut him three weeks later when they needed to add a defensive lineman to replace the injured Marty Lyons. Taylor then played two seasons for the Washington Federals of the USFL, amassing 171 rushes for 757 yards and 5 touchdowns along with 64 receptions for 523 yards and 2 TDs in 1983. In 1984, Taylor rushed 142 times for 499 yards while also collecting 51 receptions for 387 yards and a touchdown.
Document 15: John Randle: John Anthony Randle (born December 12, 1967) is a former American football defensive tackle who played for the Minnesota Vikings and the Seattle Seahawks of the National Football League (NFL). On February 6, 2010, he was voted into the Pro Football Hall of Fame. Born in Mumford, Texas, Randle was raised poor and worked odd jobs when he was young. His brother Ervin Randle played as a linebacker for eight years. Randle played high school football in Hearne, Texas. He started his college playing career at Trinity Valley Community College, before transferring to Texas A&M University–Kingsville.
ground_truth: National Football League (NFL)