Question:
Charles Lewis Haley (born January 6, 1964) is a former American football linebacker and defensive end who played in the National Football League (NFL) for the San Francisco 49ers (1986-1991, 1998-1999) and the Dallas Cowboys (1992-1996). A versatile defensive player, Haley began his career as a specialty outside linebacker, eventually progressing to pass-rusher and finally full-fledged defensive end. He is the first five-time Super Bowl champion, and is one of only two such players, the other being Tom Brady. He won two Super Bowls with the 49ers (XXIII, XXIV) and three with the Cowboys (XXVII, XXVIII, XXX); he was a starter in all five championship games.
Haley was selected by the San Francisco 49ers in the fourth round (96th overall) of the 1986 NFL Draft, after dropping because he initially was timed at 4.8 seconds in the 40-yard dash, although he was later clocked by a 49ers scout at 4.55 seconds. He played outside linebacker in a 3-4 defense, finished second behind Leslie O'Neal for rookies with 12 sacks and was voted to the NFL All-Rookie team by Pro Football Weekly and the United Press International. The following year, he played again in a designated pass rusher role, coming into the game in likely passing situations, while making 25 tackles and 6.5 sacks. In 1988, Haley was named the starter at left outside linebacker, registering 69 tackles, 11.5 sacks and would hold that spot through the 1991 season. The next year, he tallied 57 tackles and 10.5 sacks. In 1990, Haley had 58 tackles, 9 passes defensed, was third in the league with 16 sacks, was voted the UPI NFC Defensive Player of the Year and was a consensus All-Pro. In 1991, Haley's relationship with the organization began to deteriorate after safety Ronnie Lott was left unprotected--eligible to sign with any team under Plan B free agency. He still recorded 53 tackles, 6 passes defensed, 2 forced fumbles and 7 sacks, tying for the team lead with Larry Roberts. While with the 49ers from 1986 to 1991, he led the team in sacks every season, and played on the Super Bowl XXIII and Super Bowl XXIV championship teams. On August 26, 1992, Haley's volatile temperament and clashes with head coach George Seifert prompted the team to trade him to the Dallas Cowboys in exchange for a 1993 second round selection (#56-Vincent Brisby) and a 1994 third round selection (#99-Alai Kalaniuvalu).
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when did he join the 49ers

Answer:
Haley was selected by the San Francisco 49ers in the fourth round (96th overall) of the 1986 NFL Draft,

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Bradley Joseph (born 1965) is an American composer, arranger, and producer of contemporary instrumental music. His compositions include works for orchestra, quartet, and solo piano, while his musical style ranges from "quietly pensive mood music to a rich orchestration of classical depth and breadth". Active since 1983, Joseph has performed in front of millions of people around the world. He played various instruments in rock bands throughout the Midwest until 1989 when Greek composer Yanni hired him for his core band after hearing a tape of his original compositions.
Joseph also performed with Sheena Easton for four years as her co-musical director and lead keyboardist. He went from Yanni to Easton and back to Yanni in a few years. "It was a great transition from Yanni because it made me musically aware again", he said in reference to Easton's R&B style. "I went back to where I started but it felt like a new invention." Wheeler questioned how he got hooked up with Easton; Joseph answered that he was recommended by a former road manager. He was included in a try-out with four others, rehearsed with the band, they then cut it down to two, and rehearsed with Sheena for the final cut. Joseph anticipated they would ask him to do a solo on at least one of the songs he was asked to play during the audition, so he wrote a solo for all three songs, which was ultimately the reason he was hired for the job. In a 1995 interview, he said that after five years of touring with Yanni and working on his own debut album, he needed a break. Yanni was still building his career and maintained a hectic concert schedule. Working with Easton, on the other hand, was "the best of both worlds". "She just adopted a baby and is pretty settled in", said Joseph. Tour venues with her included Japan, Indonesia, Puerto Rico, and the United States, as well as routine appearances in Las Vegas and Atlantic City. In March 1995, he appeared with her on The Tonight Show with Jay Leno when she performed her new single at the time, "My Cherie".

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In a 1995 interview, he said that after five years of touring with Yanni and working on his own debut album, he needed a break.