Question: What type of bands are Saosin and One Ok Rock?

full_context: Document 1: Stone Sour: Stone Sour is an American heavy metal band formed in Des Moines, Iowa in 1992, performing for five years, before disbanding in 1997. They reunited in 2000 and since 2006, the group has consisted of Corey Taylor (lead vocals, guitar), Josh Rand (guitar) and Roy Mayorga (drums). Longtime members Joel Ekman (drums, percussion), Shawn Economaki (bass guitar), and Jim Root (guitar) left the group in 2006, 2011, and 2014 respectively.
Document 2: One Ok Rock: One Ok Rock, stylized as ONE OK ROCK (pronounced in Japanese as "one o'clock"), is a Japanese rock band formed in Tokyo, Japan in 2005. The band currently consists of Takahiro Moriuchi (vocals), Toru Yamashita (guitar/leader), Ryota Kohama (bass), and Tomoya Kanki (drums).
Document 3: Saosin (EP): Saosin is the second EP by American rock band Saosin. It was their first Capitol Records release, and the first release to feature Cove Reber as vocalist in place of Anthony Green.
Document 4: One Ok Rock discography: Japanese rock band One Ok Rock has released eight studio albums, two EPs, 22 singles, seven video albums, six cover versions, and 32 music videos. One Ok Rock was formed in Tokyo, Japan in 2005, currently consists of Takahiro Moriuchi (vocals), Toru Yamashita (guitar/leader), Ryota Kohama (bass), and Tomoya Kanki (drums).
Document 5: Along the Shadow: Along the Shadow is the third studio album by American rock band Saosin, released on May 20, 2016 through Epitaph Records. The album marks the end of a three-and-a-half-year hiatus for the group with the return of original lead vocalist Anthony Green. It also marks the subsequent departure of lead guitarist Justin Shekoski.
Document 6: Stone Sour discography: The discography of Stone Sour, an American alternative metal band, consists of six studio albums, one live album and eighteen singles. The band has also released sixteen music videos. Stone Sour formed in Des Moines, Iowa in 1992 but did not release an album until 2002. The band comprises vocalist Corey Taylor, guitarists Christian Martucci and Josh Rand, drummer Roy Mayorga, and bassist Johny Chow. Longtime members Joel Ekman, Shawn Economaki and Jim Root left the band in 2006, 2011 and 2014, respectively. Martucci and Chow were first featured with the band on the Burbank Duology. Hydrograd is the first album to feature Christian Martucci and Johny Chow since each joining the band in 2014 and 2012, respectively.
Document 7: In Search of Solid Ground: In Search of Solid Ground is the second studio album by American rock band Saosin, released on September 8, 2009 through Virgin Records. Recording sessions for the album saw Saosin recording with multiple producers such as Butch Walker, John Feldman, and Lucas from Matt Squire's production team. Five songs off the album were self-produced by the band's guitarist Beau Burchell and bass guitarist Chris Sorenson. The album is also the last release to feature former lead vocalist Cove Reber and the guitarist Justin Shekoski.
Document 8: Tomoya Kanki: Tomoya Kanki (神吉 智也 , Kanki Tomoya ) (born June 27, 1987 in Hyogo Prefecture, Japan, better known by his stage name Tomoya). He played drums on ONE OK ROCK indie releases but did not officially join until 2007. Tomoya came from ESP Musical Academy where he used to be a teacher. He has the most curious hobbies among the band members and the eldest member of ONE OK ROCK. He is the one who often updates the ONE OK ROCK blog.
Document 9: Ryota Kohama: Ryota Kohama (小浜良太 , Kohama Ryōta ) (born 4 September 1989), better known as his stage name Ryota, is a bassist in the Japanese rock band ONE OK ROCK. He was in the hip-hop group HEADS along with Toru Yamashita from ONE OK ROCK before they disbanded in 2002.
Document 10: Saosin: Saosin is an American rock band from Orange County, California, United States. The band was formed in 2003 and recorded its first EP, "Translating the Name", that same year original vocalist Anthony Green left Saosin due to personal reasons. In 2004, Cove Reber replaced Green as vocalist after auditioning for the role. The group recorded its self titled debut album which was released on Capitol Records on September 26, 2006. Their second studio album, "In Search of Solid Ground", was released on September 8, 2009 on Virgin and contains three re-recorded tracks off of "The Grey EP". Reber departed from the band in 2010 and subsequently went on a three-year hiatus. In 2013, the band reformed with all original members, except Zach, and began touring. They released their third studio album and their first studio album, "Along the Shadow", with original vocalist Anthony Green on May 20, 2016 through Epitaph Records. It is also the album that marks the final feature lead guitarist Justin Shekoski.
Document 11: Saosin (album): Saosin is the debut self-titled studio album by American rock band Saosin, released September 26, 2006 through Capitol Records. It is the band's second release to feature lead vocalist Cove Reber.
Document 12: Takahiro Moriuchi: Takahiro Moriuchi (森内 貴寛 , Moriuchi Takahiro , born April 17, 1988 in Tokyo) , known professionally as Taka, is the lead vocalist of the Japanese rock band ONE OK ROCK. Prior to this, he was in the boyband NEWS throughout 2003 until he left the group and the agency. Taka is the lyricist and composer of his band.
Document 13: Buck-Tick: Buck-Tick (stylized as BUCK-TICK) is a Japanese rock band, formed in Fujioka, Gunma in 1983. The group has consisted of Atsushi Sakurai (lead vocals), Hisashi Imai (guitar), Hidehiko Hoshino (guitar), Yutaka Higuchi (bass) and Toll Yagami (drums) since 1985. In their three decade career, the band has released 20 studio albums, nearly all reaching the top ten on the charts, of which three in the late eighties and early nineties topped them. They are commonly credited as one of the founders of the visual kei movement.
Document 14: Toru Yamashita: Toru Yamashita (山下 亨 , Yamashita Tōru ) (born December 7, 1988 in Osaka), better known by his stage name Toru, is a guitarist and leader in the Japanese rock band ONE OK ROCK. He was in the hip-hop group HEADS along with Ryota Kohama from ONE OK ROCK before they disbanded in 2002.
Document 15: Translating the Name: Translating the Name is the debut EP by American rock band Saosin, released on June 17, 2003 through Death Do Us Part. The album was released before Anthony Green departed from the band to form the rock band Circa Survive. It is also the band's only release to feature bass guitarist Zack Kennedy, as well as the only release to not feature drummer Alex Rodriguez. Guitarist Beau Burchell stated that Rodriguez intended to track the drums for Translating the Name but had a prior commitment with his former band Open Hand before he could join. Pat Magrath was hired as a session musician and performed with Saosin briefly before Rodriguez joined.
ground_truth: rock