Question: Who is the twin brother of the basketball players that the Washington Bullets traded tot he Portland trail Blazers in 1993?

full_context: Document 1: Taylor Griffin: Taylor Griffin (born April 18, 1986) is an American professional basketball player who last played for Pallacanestro Trapani of the Italian Serie A2. He played college basketball at the University of Oklahoma and is the older brother of Los Angeles Clippers All-Star forward Blake Griffin.
Document 2: Keith Griffin (American football): Keith B. Griffin (born October 26, 1961) is a former American football running back in the National Football League for the Washington Redskins. He played college football at the University of Miami. Griffin was featured on the cover of "Sports Illustrated" on January 9, 1984 for the story of the Hurricanes' dramatic victory over the #1 Ranked Nebraska Cornhuskers 31-30 in the January 1, 1984 Orange Bowl. The 11-1-0 Hurricanes broke the Cornhuskers' 22-game win streak. Keith is the younger brother to two-time Heisman Trophy winner Archie Griffin.
Document 3: Michael Grant (basketball): Michael Grant (March 13, 1963) is an American college basketball coach, most recently the head coach for Coppin State University. He was also a graduate assistant at the University of Michigan where he helped coach his younger brother Gary Grant.
Document 4: 1992–93 Washington Bullets season: The 1992–93 NBA season was the Bullets' 32nd season in the National Basketball Association. A year after being named Most Improved Player, Pervis Ellison who had a history of injuries played only 49 games. The Bullets struggled after a 7–10 start losing nine consecutive games in December. They lost their final five games of the season, finishing last place in the Atlantic Division with a 22–60 record. Top draft pick Tom Gugliotta made the All-Rookie First Team averaging 14.7 points and 9.6 rebounds per game. On March 19, 1993 against the Chicago Bulls, second-year guard LaBradford Smith scored a career high of 37 points against Michael Jordan. However, the Bullets lost to the Bulls 104–99. Following the season, Harvey Grant was traded to the Portland Trail Blazers, and Charles Jones was released, where he would sign as a free agent with the Detroit Pistons during the next season.
Document 5: 1995–96 Washington Bullets season: The 1995–96 NBA season was the Bullets' 35th season in the National Basketball Association. During the offseason, the Bullets acquired All-Star guard Mark Price from the Cleveland Cavaliers, and Robert Pack from the Denver Nuggets, while signing unrestricted free agent Tim Legler. In his second season, Juwan Howard emerged as a star on the court and in the community, averaging 22.1 points per game while being selected to the 1996 NBA All-Star Game. However, Injuries would be an issue as his teammate Chris Webber would be limited to 15 games following the lingering effect to his injured shoulder. Meanwhile, Price only appeared in just seven games due to a sore left heel, and Pack who played in 31 games was out with nerve damage in his right leg.
Document 6: 1993–94 Portland Trail Blazers season: The 1993–94 NBA season was the 24th season for the Portland Trail Blazers in the National Basketball Association. In the offseason, the Blazers acquired Harvey Grant from the Washington Bullets and signed unrestricted free agent Chris Dudley. However, an ankle injury limited Dudley to just six games. The Blazers finished the season with a 47–35 record, fourth in the Pacific Division and seventh in the Western Conference. It was their 12th straight trip to the postseason. Clifford Robinson led the Blazers in scoring with 20.1 points per game, and was selected for the 1994 NBA All-Star Game along with Clyde Drexler.
Document 7: 1991–92 Washington Bullets season: The 1991–92 NBA season was the Bullets' 31st season in the National Basketball Association. During the offseason, the Bullets re-acquired Michael Adams from the Denver Nuggets. However, Bernard King would miss the entire season with a right knee injury. To make matters worse, Hot Plate Williams was suspended for the entire season for not being able to control his weight. The Bullets endured prolonged losing streaks in almost every month, as they traded Tom Hammonds midway through the season to the Charlotte Hornets for Rex Chapman, who only played in the final game of the season due a strained plantar fascia (left heel) injury. The Bullets lost 15 of their final 18 games finishing sixth in the Atlantic Division with a 25–57 record.
Document 8: 1992–93 Los Angeles Lakers season: The 1992–93 NBA season was the Lakers' 45th season in the National Basketball Association, and 33rd in the city of Los Angeles. After playing in the Olympics, Magic Johnson attempted a comeback, but cut it short when other NBA players expressed fear of playing against him. Under new head coach Randy Pfund, the Lakers played around .500 for the first half of the season. At midseason, Sam Perkins was traded to the Seattle SuperSonics for Benoit Benjamin and rookie Doug Christie. However, the Lakers struggled losing 19 of their final 30 games in March and April, finishing fifth in the Pacific Division with a 39–43 record, their worst since 1974–75, but still qualified the playoffs as the #8 seed in the Western Conference.
Document 9: Horace Grant: Horace Junior Grant (born July 4, 1965) is an American retired basketball player. He attended and played college basketball at Clemson University before playing professionally in the National Basketball Association (NBA), where he became a four-time champion with the Chicago Bulls and Los Angeles Lakers. Horace is the twin brother of former NBA player Harvey Grant.
Document 10: 1992–93 Portland Trail Blazers season: The 1992–93 NBA season was the 23rd season for the Portland Trail Blazers in the National Basketball Association. In the offseason, the Blazers signed free agents Rod Strickland and Mario Elie. The Blazers got off to a fast start winning their first eight games of the season. However, Clyde Drexler played just 49 games due to knee and hamstring injuries, as he led the team with 19.9 points per game. The Blazers finished the season with a 51–31 record, third in the Pacific Division and fourth in the Western Conference. It was their 11th straight trip to the postseason. Clifford Robinson was named Sixth Man of The Year averaging 19.1 points per game off the bench, and Terry Porter was selected for the 1993 NBA All-Star Game along with Drexler.
Document 11: Ray Griffin: Raymond Griffin (born June 26, 1956) is a former American football cornerback. He is the younger brother of former two-time Heisman Trophy winner Archie Griffin, and also played college football with the Ohio State Buckeyes and pro football for the Cincinnati Bengals.
Document 12: Grant Hill: Grant Henry Hill (born October 5, 1972) is a retired American basketball player and a sports show host on NBA TV's NBA Inside Stuff. Hill played for four teams in his professional career in the National Basketball Association (NBA); the Detroit Pistons, Orlando Magic, Phoenix Suns, and Los Angeles Clippers.
Document 13: 1994–95 Washington Bullets season: The 1994–95 NBA season was the Bullets' 34th season in the National Basketball Association. During the offseason, the Bullets acquired Scott Skiles from the Orlando Magic and hired Jim Lynam as head coach. After drafting Juwan Howard with the fifth pick in the 1994 NBA draft, the Bullets traded Tom Gugliotta to the Golden State Warriors for Howard's former "Fab Five" teammate at Michigan Chris Webber. However, after a 4–1 start to the season, the Bullets struggled as they lost 25 of their next 28 games. At midseason, things got worse as Kevin Duckworth was suspended indefinitely after 40 games for not staying in physical condition, where he weighed over 310lbs. The Bullets posted a 13-game losing streak near the end of the season, and finished last place in the Atlantic Division with a 21–61 record. Webber averaged 20.1 points, 9.6 rebounds and 1.6 blocks per game.
Document 14: Harvey (MC): Michael Harvey, Jr (born 1 May 1979 in Plymouth, Devon, England), better known as MC Harvey or simply Harvey, is an English rapper, actor, television personality and former non-League footballer. He first came to fame in the early 2000s as a member of English rap group So Solid Crew before then pursuing a solo career in 2008. In 2012, he was a contestant on "Celebrity Big Brother 10".
Document 15: Harvey Grant: Harvey Grant (born July 4, 1965) is a retired American National Basketball Association basketball player. He is the identical twin brother of Horace Grant, also a former NBA player.
ground_truth: Horace Grant