Question: Who had their Houston Aeros debut in the 1973-74 season and is nicknamed "Mr. Hockey"?

full_context: Document 1: Glenn Hall: Glenn Henry "Mr. Goalie" Hall (born October 3, 1931) is a former professional ice hockey goaltender. During his National Hockey League career with the Detroit Red Wings, Chicago Black Hawks, and St. Louis Blues, Hall seldom missed a game and was a consistent performer, winning the Vezina Trophy, which at the time was awarded to the goaltender on the team allowing the fewest goals against (a distinction that now results in being awarded the William M. Jennings Trophy), three times, being voted the First Team All-Star goaltender a record seven times, and winning the Calder Memorial Trophy as best rookie. Nicknamed "Mr. Goalie", he was the first goaltender to develop and make effective use of the butterfly style of goalkeeping. On January 1, 2017, in a ceremony prior to the Centennial Classic, Hall was part of the first group of players to be named one of the '100 Greatest NHL Players' in history. He is the grandfather of Grant Stevenson.
Document 2: 1973–74 Chicago Cougars season: The 1973–74 Chicago Cougars season was the Chicago Cougars' second season of operation in the World Hockey Association. The team qualified for the playoff and won two playoff series to make it to the Avco Cup Final before losing to the Houston Aeros.
Document 3: Gordie Howe: Gordon "Gordie" Howe, OC (March 31, 1928 – June 10, 2016) was a Canadian professional ice hockey player. From 1946 to 1980, he played twenty-six seasons in the National Hockey League (NHL) and six seasons in the World Hockey Association (WHA); his first 25 seasons were spent with the Detroit Red Wings. Nicknamed "Mr. Hockey", Howe is considered the most complete player to ever play the game and one of the greatest ice hockey players of all time. A 23-time NHL All-Star, he held many of the sport's career scoring records until they were broken in the 1980s by Wayne Gretzky, who himself has been a major champion of Howe's legacy. He continues to hold NHL records for most games and seasons played. In 2017, Howe was named one of the "100 Greatest NHL Players".
Document 4: Wayne Gretzky: Wayne Douglas Gretzky {'1': ", '2': ", '3': ", '4': "} ( ; born January 26, 1961) is a Canadian former professional ice hockey player and former head coach. He played twenty seasons in the National Hockey League (NHL) for four teams from 1979 to 1999. Nicknamed "The Great One", he has been called "the greatest hockey player ever" by many sportswriters, players, and the league itself. He is the leading scorer in NHL history, with more goals and assists than any other player. He garnered more assists than any other player scored total points, and is the only NHL player to total over 200 points in one season – a feat he accomplished four times. In addition, he tallied over 100 points in 16 professional seasons, 14 of them consecutive. At the time of his retirement in 1999, he held 61 NHL records: 40 regular-season records, 15 playoff records, and six All-Star records. As of 2015, he still holds 60 NHL records.
Document 5: Terry Sawchuk: Terrance Gordon Sawchuk (December 28, 1929 – May 31, 1970) was a Ukrainian-Canadian professional ice hockey goaltender who played 21 seasons in the National Hockey League (NHL) for the Detroit Red Wings, Boston Bruins, Toronto Maple Leafs, Los Angeles Kings and the New York Rangers.
Document 6: 1973–74 Houston Aeros season: The 1973–74 Houston Aeros season was the Houston Aeros second season of operation in the World Hockey Association (WHA). The season saw the debut of Gordie Howe and his sons in the WHA. The team would win the Avco World Trophy WHA championship.
Document 7: 1977–78 Houston Aeros season: The 1977–78 Houston Aeros season was the Houston Aeros' sixth and final season of operation in the World Hockey Association (WHA). The Aeros again qualified for the playoffs, but lost in the first round to the Quebec Nordiques.
Document 8: Guy Lafleur: Guy Damien "The Flower" / "Le Démon Blond" Lafleur, OC, CQ (born September 20, 1951) is a Canadian former professional ice hockey player who was the first player in the National Hockey League (NHL) to score 50 goals and 100 points in six straight seasons. Between 1971 and 1991, he played for the Montreal Canadiens, New York Rangers and Quebec Nordiques in an NHL career spanning 17 seasons, and five Stanley Cup championships (all with the Canadiens). On January 27, 2017, in a ceremony during the All-Star Weekend in Los Angeles, Lafleur was part of the second group of players to be named one of the '100 Greatest NHL Players' in history.
Document 9: Maurice Richard: Joseph Henri Maurice "Rocket" Richard {'1': ", '2': ", '3': ", '4': "} ( ; ] ; August 4, 1921 – May 27, 2000) was a Canadian professional ice hockey player who played 18 seasons in the National Hockey League (NHL) for the Montreal Canadiens. He was the first player in NHL history to score 50 goals in one season, accomplishing the feat in 50 games in 1944–45, and the first to reach 500 career goals. Richard retired in 1960 as the league's all-time leader in goals with 544. He won the Hart Trophy as the NHL's most valuable player in 1947, played in 13 All-Star Games and was named to 14 post-season NHL All-Star Teams, eight on the First-Team. On January 1, 2017, in a ceremony prior to the Centennial Classic, Richard was part of the first group of players to be named one of the '100 Greatest NHL Players' in history.
Document 10: 1972–73 Houston Aeros season: The 1972–73 Houston Aeros season was the Houston Aeros first season of operation in the newly created World Hockey Association (WHA).
Document 11: 1975–76 Houston Aeros season: The 1975–76 Houston Aeros season was the Aeros' fourth season of operation in the World Hockey Association (WHA). The Aeros again qualified first for the playoffs and made it to the Avco Cup Final but lost the championship to the Winnipeg Jets. This was the first season that the Aeros played in the Summit after three seasons at Sam Houston Coliseum.
Document 12: 1974–75 Houston Aeros season: The 1974–75 Houston Aeros season was the Aeros' third season of operation in the World Hockey Association (WHA). The Aeros qualified first in their division for the playoffs and successfully defended their Avco World Trophy WHA championship.
Document 13: Brett Hull: Brett Andrew Hull (born August 9, 1964) is a Canadian-born American former National Hockey League (NHL) player and general manager, and currently an executive vice president of the St. Louis Blues. He played for the Calgary Flames, St. Louis Blues, Dallas Stars, Detroit Red Wings and Phoenix Coyotes between 1986 and 2005. His career total of 741 goals is the fourth highest in NHL history, and he is one of five players to score 50 goals in 50 games. He was a member of two Stanley Cup winning teams - 1999 with the Dallas Stars and 2002 with the Detroit Red Wings. His championship winning goal for Dallas in overtime of game six of the 1999 Stanley Cup Finals remains the focus of debate over whether it was scored within the rules of the time. On January 27, 2017, in a ceremony during the All-Star Weekend in Los Angeles, Hull was part of the second group of players to be named one of the '100 Greatest NHL Players' in history.
Document 14: 1976–77 Houston Aeros season: The 1976–77 Houston Aeros season was the Aeros' fifth season of operation in the World Hockey Association. The Aeros finished first in the West to qualify for the playoffs. The Aeros would lose in the semi-finals to the Winnipeg Jets.
Document 15: Bobby Orr: Robert Gordon Orr, OC (born March 20, 1948) is a Canadian former professional ice hockey player, widely acknowledged as one of the greatest hockey players of all time. Orr used his ice skating speed, scoring, and play-making abilities to revolutionize the position of defenceman. He played in the National Hockey League (NHL) for 12 seasons, starting with 10 with the Boston Bruins followed by two with the Chicago Black Hawks. Orr remains the only defenceman to have won the league scoring title with two Art Ross Trophies. He holds the record for most points and assists in a single season by a defenceman. Orr won a record eight consecutive Norris Trophies as the NHL's best defenceman and three consecutive Hart Trophies as the league's most valuable player (MVP). Orr was inducted into the Hockey Hall of Fame in 1979 at age 31, the youngest to be inducted at that time. On January 27, 2017, in a ceremony during the All-Star Weekend in Los Angeles, Orr was part of the second group of players to be named one of the '100 Greatest NHL Players' in history. After his hockey career, he became a well-known scout for many professional teams. He also spends time talking to and mentoring young skaters.
ground_truth: Gordie Howe