Question: Who started their musical career first Julian Cope or Screaming Trees?

full_context: Document 1: Screaming Trees: Screaming Trees was an American rock band formed in Ellensburg, Washington in 1985 by vocalist Mark Lanegan, guitarist Gary Lee Conner, bass player Van Conner and drummer Mark Pickerel. Pickerel had been replaced by Barrett Martin by the time the band reached its most successful period. Although widely associated with grunge, the band's sound incorporated hard rock and psychedelic elements. During Screaming Trees' existence the band released seven studio albums, five EPs, and three compilations.
Document 2: Beat Happening/Screaming Trees: Beat Happening/Screaming Trees is an EP and a one-off collaboration between Beat Happening (from Olympia, Washington) and Screaming Trees (from Ellensburg, Washington). Originally released on Homestead Records in 1988, it was later reissued as part of Beat Happening's box set "Crashing Through" in 2002. The journal of Kurt Cobain contains a draft of a letter sent to Mark Lanegan, in which he described "Polly Pereguin" as his favorite pop song of the 1980s.
Document 3: Van Conner: Van Conner (born March 17, 1967 in Apple Valley, California) is an American rock musician. In 1984 he co-founded the band Screaming Trees with his brother Gary Lee Conner and close friends Mark Lanegan and Mark Pickerel. On the 25 June 2000 Screaming Trees announced their official breakup. Conner would start a low key band under the name Gardener which released its only album in the 1990s under the name "New Dawning Time". Conner has also had brief appearances as a session musician with other known bands such as Queens of the Stone Age and helping Mark Lanegan on his solo album I'll Take Care of You.
Document 4: Julian Lennon: John Charles Julian Lennon (born 8 April 1963) is an English musician and photographer. Lennon is the child of John Lennon and his first wife, Cynthia.
Document 5: Ian Curtis: Ian Kevin Curtis (15 July 1956 – 18 May 1980) was an English singer-songwriter and musician. He is best known as the lead singer and lyricist of the post-punk band Joy Division. Joy Division released their debut album, "Unknown Pleasures", in 1979 and recorded their follow-up, "Closer", in 1980.
Document 6: David Sylvian: David Sylvian (born David Alan Batt, 23 February 1958) is an English singer-songwriter and musician who came to prominence in the late 1970s as the lead vocalist and main songwriter in the group Japan. His subsequent solo work is described by AllMusic critic Jason Ankeny as "a far-ranging and esoteric career that encompassed not only solo projects but also a series of fascinating collaborative efforts." Sylvian's solo work has been influenced by a variety of musical styles and genres, including jazz, avant-garde, ambient, electronic, and progressive rock.
Document 7: Brian Eno: Brian Peter George St John le Baptiste de la Salle Eno, RDI ( ; born 15 May 1948 and originally christened Brian Peter George Eno) is an English musician, composer, record producer, singer, writer, and visual artist. He is best known for his pioneering work in rock, ambient, pop, and electronic music. A self-described "non-musician", Eno has helped to introduce a variety of unique conceptual approaches and recording techniques into contemporary music, advocating a methodology of "theory over practice" throughout his career. He has been described as one of popular music's most influential and innovative figures.
Document 8: Rite²: Rite² is an ambient music album by Julian Cope, released in 1997. It is technically Cope’s fourteenth solo album, but is also the follow-up to the earlier album "Rite" (released in 1992 and credited to "Julian Cope & Donald Ross Skinner") and is the second in the "Rite" series.
Document 9: Julian Cope: Julian David Cope (born 21 October 1957) is an English musician, author, antiquarian, musicologist, poet and cultural commentator. Originally coming to prominence in 1978 as the singer and songwriter in Liverpool post-punk band the Teardrop Explodes, he has followed a solo career since 1983 and worked on musical side projects such as Queen Elizabeth, Brain Donor and Black Sheep.
Document 10: Soundgarden: Soundgarden is an American rock band formed in Seattle, Washington, in 1984 by singer and rhythm guitarist Chris Cornell, lead guitarist Kim Thayil, and bassist Hiro Yamamoto. Matt Cameron became the band's full-time drummer in 1986, while bassist Ben Shepherd became a permanent replacement for Yamamoto in 1990. The band dissolved in 1997 and reformed in 2010. Cornell remained in Soundgarden until his death in May 2017, putting the band's future in doubt and leaving Thayil as the only remaining original member of the band.
Document 11: Floored Genius: Floored Genius - The Best of Julian Cope and The Teardrop Explodes 1979-91 is a compilation album by Julian Cope, released in 1992, combining Cope's work with The Teardrop Explodes and his early solo work.
Document 12: Jehovahkill: Jehovahkill is the eighth album by Julian Cope, released in 1992. After the critical success of "Peggy Suicide" (1991), Cope's idea for "Jehovakill" was to incorporate a krautrock attitude into his music. He began recording the album with musicians Rooster Cosby and Donald Ross Skinner, while co-producing it with the latter. The sessions yielded what Cope considered to be his most sonically experimental material to date. Originally titleing the record "Julian H. Cope", he sent an eleven track version to Island Records, who initially rejected its release, but relentfully gave Cope extra recording sessions for the album. During the extra sessions, in which six extra songs were recorded, the album became harder and was retitled "Jehovahkill".
Document 13: Mad Season (band): Mad Season was an American rock supergroup formed in Seattle, Washington in 1994 by members of three popular Seattle-based bands: Alice in Chains, Pearl Jam and Screaming Trees. Mad Season released only one album, "Above", and is best known for the single "River of Deceit". The band went on a semi-permanent hiatus in 1996 due to the band members' conflicting schedules and vocalist Layne Staley's problems with substance abuse. Attempts were made in the late 1990s to revive the group without Staley; however, the band dissolved following the death of bassist John Baker Saunders in 1999. Staley died three years later of a drug overdose.
Document 14: Gary Lee Conner: Gary Lee Conner (born Lee Gary Conner on August 22, 1962 in Fort Irwin, California, USA) was the lead guitarist for rock act Screaming Trees, along with his brother Van Conner, who was the band's bassist. Conner began his career with Screaming Trees in 1985 which lasted until their disbanding in 2000. During that time he released two non-Tree albums: The Purple Outside-Mystery Lane (1990 New Alliance Records) with brother Patrick Conner on Drums and the single Grasshopper's Daydream/Behind The Smile (1999 sub pop) this album also featured Josh Homme from Queens of the Stone Age. Appearances on other artists material include, Beat Happening "Indian Summer" and "Midnight a Go-Go" from "Jamboree" as well as "Against the 70s" by Mike Watt from "Ball-Hog or Tugboat?" (1995 Columbia Records). After ten years of seclusion he finally released a new album in 2010 from his band Microdot Gnome. The album "4D Sugarcubes" was released on Moonbus International Recordings in April 2010 as was available on CD and MP3. At the moment he is planning future releases from Microdot Gnome. In August 2016, Conner released a long-awaited solo album, Ether Trippers, on Strange Earth Records.
Document 15: Screaming Trees discography: The discography of Screaming Trees, an Ellensburg, Washington-based rock band, consists of seven studio albums, three compilation albums, five extended plays (EP), and six singles, though this does not include any solo material recorded by the individual members of Screaming Trees.
ground_truth: Julian David Cope