Question: What is the nickname for the founder of the independent semi-professional American football team J.P. Rooneys?

full_context: Document 1: 1978 Pittsburgh Steelers season: The 1978 Pittsburgh Steelers season was the franchise's 46th season in the National Football League (NFL). The season concluded with the team winning Super Bowl XIII to become the first franchise in the NFL to win three Super Bowl titles. The championship run was led by quarterback Terry Bradshaw and the team's vaunted Steel Curtain defense. Bradshaw put together the best year of his career to that point, becoming only the second Steeler to win the NFL MVP award. Ten Steelers players were named to the Pro Bowl team, and four were judged as first-team All-Pros by the AP. Head coach Chuck Noll returned for his tenth season—moving him ahead of Walt Kiesling as the longest tenured head coach in the team's history to that point.
Document 2: Frank Rooney (businessman): Frank Rooney is a wealthy American businessman.
Document 3: Heinz Field: Heinz Field is a stadium located in the North Shore neighborhood of Pittsburgh, Pennsylvania, United States. It primarily serves as the home to the Pittsburgh Steelers of the National Football League (NFL) and the Pittsburgh Panthers of the National Collegiate Athletic Association (NCAA). The stadium opened in 2001, after the controlled implosion of the teams' previous stadium, Three Rivers Stadium. The stadium is named for the locally based H. J. Heinz Company, which purchased the naming rights in 2001. It hosted the 2011 NHL Winter Classic between the Pittsburgh Penguins and Washington Capitals on January 1, 2011. On September 10, 2016, it hosted the Keystone Classic, which featured a renewal of the Penn State-Pitt football rivalry, setting a new attendance record at 69,983 people. In 2017 it hosted the Coors Light Stadium Series game featuring the Pittsburgh Penguins and Philadelphia Flyers.
Document 4: PNC Park: PNC Park is a baseball park located on the North Shore of Pittsburgh, Pennsylvania. It is the fifth home of the Pittsburgh Pirates, the city's Major League Baseball (MLB) franchise. It opened during the 2001 MLB season, after the controlled implosion of the Pirates' previous home, Three Rivers Stadium. The ballpark is sponsored by PNC Financial Services, which purchased the naming rights in 1998. PNC Park features a natural grass playing surface and seats 38,362 people for baseball.
Document 5: Russell Aukerman: Albert Russell Aukerman was an early professional football player-coach for the Latrobe Athletic Association. Prior to that, he was a halfback at Gettysburg College. He entered the College in 1893 at the age of 20. Because of his maturity, he was elected captain of the football team. He emerged as one of the premier rushers of his day. Over a three-year period, he produced the winning points in wins over Dickinson, Washington & Jefferson, Franklin College and Marshall University. He was also an accomplished track athlete for Gettysburg, running the 100 and 200 meter relays and also the long jump. He left school to become a physical instructor at the Latrobe A. A. He was then picked to be the team's first head coach in 1895. He formed what became one of the first professional football teams and is credited with scoring the first professional touchdown, with John Brallier in a game against the Jeannette Athletic Club. Aukerman also played pro football for the Duquesne Country and Athletic Club for two games in 1895 at Exposition Park
Document 6: 1974 Pittsburgh Steelers season: The 1974 Pittsburgh Steelers season was capped off with a 10-3-1 record and the Super Bowl IX championship. The '74 team became the first team in Steelers history (42 seasons) to win a league title following one of the franchise's greatest playoff runs ever. After the hiring of head coach Chuck Noll in 1969, Noll signed Defensive Tackle #75 Joe Greene. He then signed Quarterback #12 Terry Bradshaw in 1970. Linebacker #59 Jack Ham and Cornerback #47 Mel Blount arrived in 1971. And in 1972, the Steelers signed a fullback from nearby Penn. State in Franco Harris. By 1973, Joe Greene was flanked on the line by Dwight White, Ernie Holmes, and L. C. Greenwood. In the 1974 draft, the Steelers took no time in signing some more talent for the team. Wide Receiver #88 Lynn Swann and #82 John Stallworth, Linebacker Jack Lambert, and Center Mike Webster all became future hall of famers.
Document 7: Pittsburgh Professionals: The Pittsburgh Professional Hockey Club, also referred to as the Pittsburgh Professionals and Pittsburgh Pros, were a professional ice hockey team that participated in the International Professional Hockey League (IPHL) from 1904 until 1907. The team was based in the Duquesne Gardens and was the first inter-city professional hockey team in the city of Pittsburgh. The Pros' line-ups included several important early professional hockey players, the most notable being Hod Stuart, who was considered, in certain hockey circles, to be the "greatest hockey player in the world."
Document 8: Pitt Stadium: Pitt Stadium was a stadium located on the campus of the University of Pittsburgh in the Oakland section of Pittsburgh in the U.S. state of Pennsylvania from 1925 to 1999. It served primarily as the home of the University of Pittsburgh's football team, the Pittsburgh Panthers. It was also used for other University sporting events, including Pittsburgh Panthers basketball, baseball, rifle, track, and gymnastics. Designed by University of Pittsburgh graduate W. S. Hindman, the US$2.1 million stadium was built after the seating capacity of the Panthers' previous home, Forbes Field, was deemed inadequate in light of the growing popularity of college football. Pitt Stadium also served as the second home of the Pittsburgh Steelers, the city's National Football League (NFL) franchise. After demolition, the Pittsburgh Panthers football team played home games at Three Rivers Stadium in 2000, before moving to Heinz Field in 2001.
Document 9: 1926 American Football League season: The 1926 American Football League season is the only season of the existence of the first American Football League. It started with nine teams, with the initial game of the season being played in front of 22,000 fans in Cleveland, Ohio, but by the end of the season (December 14, 1926), only four teams were still in existence: three teams owned or subsidized by league founder C. C. Pyle and star Red Grange (New York Yankees, Los Angeles Wildcats, and Chicago Bulls) and league champion Philadelphia Quakers. The initial lineup of teams included the traveling Wildcats and a charter member of the National Football League, the Rock Island Independents, which became a second traveling team after having poor attendance in its first three games.
Document 10: Three Rivers Stadium: Three Rivers Stadium was a multi-purpose stadium located in Pittsburgh, Pennsylvania, from 1970 to 2000. It was home to the Pittsburgh Pirates of Major League Baseball (MLB) and the Pittsburgh Steelers of the National Football League (NFL).
Document 11: Joey Sternaman: Joseph Theodore Sternaman (February 1, 1900 – March 10, 1988) was a professional American football player, born in Springfield, Illinois, who played quarterback for nine seasons for the Chicago Bears and Duluth Kelleys. At 5'6" and 135 pounds he was called "the strongest little man I ever met" by sportswriter Grantland Rice. He played quarterback during the years Red Grange starred with the Bears. In 1926, he was the quarterback, head coach, and owner of the Chicago Bulls of the first American Football League. Joey was also the brother of Chicago Bears co-owner Dutch Sternaman.
Document 12: J.P. Rooneys: The J.P. Rooneys (or formally the James P. Rooneys) were an independent semi-professional American football team, based in Pittsburgh, Pennsylvania. The team was founded by Art Rooney, who is best known for being the founder of the Pittsburgh Steelers of the National Football League, and is considered to be unofficial beginnings of the modern-day Steelers. The team played at Exposition Park and reportedly had up to 12,000 people in the stands at times.
Document 13: Arthur Smith (footballer, born 1915): Arthur Hoyle Smith {'1': ", '2': ", '3': ", '4': "} (born 8 May 1915) is an English former professional footballer. At 102, he is the oldest surviving former professional footballer, and is a month older than George Haigh, who was previously thought to be the oldest.
Document 14: Art Rooney: Arthur Joseph Rooney Sr. (January 27, 1901 – August 25, 1988), often referred to as "The Chief", was the founding owner of the Pittsburgh Steelers, an American football franchise in the National Football League (NFL), from 1933 until his death. Rooney is a member of the Pro Football Hall of Fame, was an Olympic qualifying boxer, and was part or whole owner in several track sport venues and Pittsburgh area pro teams. He was the first president of the Pittsburgh Steelers from 1933 to 1974, and the first chairman of the team from 1933 to 1988.
Document 15: Don Looney: John Don Looney (September 2, 1916 – April 5, 2015) was a professional American football end in the National Football League. He was born in Sulphur Springs, Texas. He played three seasons for the Philadelphia Eagles (1940) and the Pittsburgh Steelers (1941–1942). He was the first receiver in NFL history to have over 100 yards receiving in each of his first two games, a feat which was not equaled until the 2008 NFL season by another Eagles wide receiver, DeSean Jackson. At the time of his death, Looney was the second oldest living former NFL player. He was the father of NFL running back Joe Don Looney, who later died in a one-person motorcycle accident after his NFL career ended.
ground_truth: The Chief