Question: What nationality were the Tag team wrestlers the Haas Brothers?

full_context: Document 1: The Rock 'n' Roll Express: The Rock 'n' Roll Express is a professional wrestling tag team consisting of professional wrestlers Robert Gibson and Ricky Morton. The duo began teaming together in Memphis in the early 1980s, followed by Universal Wrestling Federation (known as Mid-South wrestling at the time), followed by a stint with the National Wrestling Alliance's Jim Crockett Promotions (JCP). They held the NWA World Tag Team Championship eight times, with the first four times in JCP. They also feuded with the Four Horsemen alliance. In the late 1980s, they were contenders for the American Wrestling Association's AWA World Tag Team Championship. By 1991, the team was losing momentum, and Morton turned heel on his partner to join The York Foundation alliance in World Championship Wrestling (WCW). In 1992, the team reformed in Smoky Mountain Wrestling, where they held the SMW Tag Team Championship ten times. The duo also worked in the World Wrestling Federation and WCW. On March 31, 2017, the duo was inducted into the WWE Hall of Fame by Jim Cornette.
Document 2: Charlie Haas: Charles Doyle "Charlie" Haas II (born March 27, 1972) is an American semi-retired professional and amateur wrestler. He is best known for his appearances with World Wrestling Entertainment (WWE) in the 2000s and Ring of Honor (ROH) in the 2010s.
Document 3: Chuck Liddell: Charles David "Chuck" Liddell (born December 17, 1969) is an American retired mixed martial artist and former UFC Light Heavyweight Champion. He has an extensive striking background in American Kenpo, Koei-Kan Karate, and kickboxing, as well as a grappling background in collegiate wrestling and Brazilian jiu-jitsu. He had 23 fights in the UFC; along with Randy Couture, he is widely credited for bringing MMA into the mainstream of American sports and entertainment. On July 10, 2009, he was inducted into the UFC Hall of Fame.
Document 4: Emilio Charles Jr.: Sergio Emilio Charles Garduño (October 12, 1956 – December 28, 2012) was a Mexican Luchador or professional wrestler who is best known under his Ring name Emilio Charles Jr. He is the son of professional wrestler Emilio Charles. Over the years Emilio Charles Jr. has worked for virtually all major Mexican professional wrestling promotions including Consejo Mundial de Lucha Libre (CMLL), Asistencia Asesoría y Administración (AAA) and International Wrestling Revolution Group (IWRG). He is also one of the founding members of the wrestling group called "Los Destructores" (“the Destroyers”) along with Vulcano and Tony Arce. He was also a key member in the group "Los Guapos" (“the Handsome Ones”) as well as a group called "Los Talibanes" (the Taliban), both with longtime wrestling partners and friends Scorpio Jr. and Bestia Salvaje.
Document 5: Charles C. Smith (boxer): Smith was born in Macon, Georgia, likely into slavery, and he and his mother moved north in 1865. His birth date is given as 3 May 1860, but since he supposedly did not begin boxing until he was 19 and claimed the title in 1876, the birth year likely is spurious. Some sources cite 1869 as the year his boxing career began, and others 1879, which would have been three years after he claimed the championship.
Document 6: Hart wrestling family: The Hart wrestling family, sometimes known as the Hart dynasty is a mainly Canadian family with a significant history within professional wrestling. The patriarch of the family was wrestling legend Stu Hart (1915–2003). An amateur and professional wrestling performer, promoter and trainer, Stu not only owned and operated his own wrestling promotion, Stampede Wrestling, but also trained some of the most well known and successful stars in wrestling history including Superstar Billy Graham, Fritz Von Erich, Edge, Chris Jericho, Chris Benoit, Christian and his sons Bret Hart and Owen Hart. All of Stu's eight sons were wrestlers and two of them, Bret and Owen, achieved considerable fame and success in the World Wrestling Federation (WWF, now WWE), with many of the WWF's biggest storylines in the mid-1990s being built around Bret and Owen and their brothers-in-law.
Document 7: The Haas Brothers: The Haas Brothers was a Professional wrestling Tag team consisting of real life brothers Charlie and Russ Haas. The team was very successful in the independent wrestling circuit, but Russ's death on December 15, 2001 led to the end of the tag team shortly after the brothers signed a contract with the World Wrestling Federation.
Document 8: Bash Brothers: The Bash Brothers are a duo of former baseball players consisting of Jose Canseco and Mark McGwire. Both prolific home run hitters, the two were teammates in Major League Baseball (MLB) for seven seasons with the Oakland Athletics, helping the team win a World Series title in 1989. The two began celebrating homers by bashing each other's forearms, which spawned a marketing campaign that was a takeoff on The Blues Brothers. After retiring from playing, Canseco and McGwire both admitted to using anabolic steroids during their careers.
Document 9: Russ Haas: Thomas Russell "Russ" Haas (March 27, 1974 – December 15, 2001) was a professional wrestler. He is best known for his work alongside his older brother Charlie in Memphis Championship Wrestling and Jersey All Pro Wrestling.
Document 10: John Cena: John Felix Anthony Cena ( ; born April 23, 1977) is an American professional wrestler, rapper, actor, and reality television show host. He is currently signed to WWE, where he is a free agent, appearing for both the Raw and SmackDown brands. Cena started his professional wrestling career in 1999 with Ultimate Pro Wrestling (UPW) and won the UPW Heavyweight Championship the following year. Cena signed a developmental contract with the World Wrestling Federation (WWF, later renamed to World Wrestling Entertainment, or simply WWE) in 2001, debuting on the WWE main roster in 2002.
Document 11: The Mega Powers: The Mega Powers were a tag team in the World Wrestling Federation (WWF) and World Championship Wrestling (WCW). The Mega Powers consisted of Hulk Hogan, and "Macho Man" Randy Savage with Miss Elizabeth (at the time Savage's real life wife, though portrayed on-screen as his manager, with any further relationship not explained) serving as their valet respectively. As of 2017, Hulk Hogan is the only surviving member, as Miss Elizabeth died in 2003 and Randy Savage died in 2011.
Document 12: Konnan: Charles Ashenoff (born Carlos Santiago Espada Moises; January 6, 1964) and better known by his ring name, Konnan, is a Cuban professional wrestler and rapper. He is currently signed to Global Force Wrestling where he is the manager of The Latin American Xchange (LAX). During a career spanning almost three decades, he has wrestled for independent and national promotions in the United States and Mexico, and held fifteen title belts in nine promotions. He has also worked as a manager, color commentator, booker, and creative consultant, primarily for Asistencia Asesoría y Administración (AAA).
Document 13: Charlie Menard: While he was a member of Team Menard, the Menards racing team, Menard captured the 2004 NASCAR Late Model championship at the La Crosse Fairgrounds Speedway with a season-high six feature wins, and also claimed the 2004 Dodge NASCAR Weekly Series Midwest Region championship. Menard ran a part-time schedule on the ASA Late Model Series in 2005 and 2006, and claimed the Late Model win at the Oktoberfest Race Weekend at La Crosse on October 7, 2005. Menard has a streak of winning at least one feature during the Oktoberfest Race Weekend for the previous three years. In 2007 Menard pursued a full season on both the ASA Late Model Challenge Series and the ASA Late Model North Series. Menard hired former ASA Late Model competitor Chad Wood as his new crew chief in 2007. He received his first ASA Late Model Challenge Series win since La Crosse speedway in June winning at the Cayuga Speedway near Nelles Corners, Ontario, Canada.
Document 14: The Colóns (2002–2010): The Colóns were a professional wrestling tag team that consisted of real-life brothers, Carlito and Primo. The team worked for World Wrestling Entertainment (WWE). They were the first-ever Unified WWE Tag Team Champions, being holders of both the WWE Tag Team Championship and World Tag Team Championship.
Document 15: Chris Benoit double-murder and suicide: Over a three-day period between June 22 and June 25, 2007, Chris Benoit, a 40-year-old veteran professional wrestler employed by World Wrestling Entertainment (WWE), killed his wife Nancy Benoit and strangled their 7-year-old son Daniel before hanging himself. Autopsy results showed that Benoit's wife was murdered first as she was bound at the feet and wrists and died of asphyxiation on Friday. Nancy was found wrapped in a towel and with blood under her head, although Fayette County District Attorney Scott Ballard reported no other signs of a struggle.
ground_truth: American