Question: Are both Gravity Kills and Deas Vail rock bands?

full_context: Document 1: Move (Third Day album): Move is the tenth studio album by Christian rock band Third Day. Released on October 19, 2010, the album was the band's first after guitarist Brad Avery left Third Day. The band wanted the album to be a departure from the modern rock stylings of "Revelation" (2008), intending to show more of their southern rock roots. Third Day chose to work with producer Paul Moak on the album and recorded it at their own studio, feeling it offered them more creative freedom. Primarily a southern rock album, "Move" also has significant influence from gospel music.
Document 2: Gravity Kills: Gravity Kills is an American industrial rock band from St. Louis, Missouri. Their music was described by one critic as "a blending of eerie industrial rock with a pop-infused melodic chorus and a bit of hard-core head banging."
Document 3: Deas Vail (album): Deas Vail is the third studio album by the indie rock band Deas Vail, released on October 11, 2011. This was the last record in which original drummer Kelsey Harelson recorded with the band. He played his last show with Deas Vail in Russellville, Arkansas on January 13, 2011. This was also the first album by Deas Vail that Mark Lee Townsend did not produce, and instead was produced by the band and Relient K guitarist Matt Hoopes.
Document 4: Third Day: Third Day is a Christian rock band formed in Marietta, Georgia during the 1990s. The band was founded by lead singer Mac Powell, guitarist Mark Lee and former member Billy Wilkins. Drummer David Carr is a current band member. The band's name is a reference to the biblical accounts of Jesus' rising from the dead on the third day following his crucifixion. The band was inducted in the Georgia Music Hall of Fame on September 19, 2009. They have sold over 7 million albums in the United States and had 28 number one radio hits. Their fans are known as "Gomers" after a song on their second album about Gomer.
Document 5: Sister Hazel: Sister Hazel is an alternative rock band from Gainesville, Florida, whose style also blends elements of jangle pop, folk rock, classic rock 'n' roll and southern rock. Their music is characterized by highly melodic tunes and prominent harmonies. Most of their songs have optimistic lyrics. The band's instrumentation often features abrupt shifts among electric, acoustic and a cappella, with striking use of tacets. Though often described as alternative, Sister Hazel leans toward an upbeat sound and away from the clashing punk discordance often associated with the alternative rock genre. There have been no changes to the band's main line-up after over 20 years, although guitarist Ryan Newell was only listed as a guest musician on their debut album, and non-original member Dave LaGrande has been touring with them since 2012.
Document 6: Deas Vail: Deas Vail ( ) is an alternative rock band whose lyrics are influenced by their members' Christian faith. The band's name is a combination of Latin and old French, roughly translated as "humble servant of God." Their eponymous third full-length album earned them slots at Bonnaroo and a headlining performance at CMJ.
Document 7: Chasing Gravity: Chasing Gravity are a rock band from Brisbane, Australia, formed in 2003 as Elephant Mojo. The members of the band are: Peter Thornley, vocals; Dominic Hooghuis, drums; Emmet Brazil, bass; and Robby Edge, guitar. Their debut album was released in April 2008 and the debut single has been featured on radio station Triple J's evening request show.
Document 8: Grindcore: Grindcore is an extreme genre of music that originated in the early to mid-1980s. It draws inspiration from some of the most abrasive-sounding genres, including hardcore punk, extreme metal, industrial and noise rock. Grindcore is characterized by a noise-filled sound that uses heavily distorted, down-tuned guitars, grinding overdriven bass, high speed tempo, blast beats, and vocals which consist of growls and high-pitched shrieks. Early groups like Napalm Death are credited with laying the groundwork for the style. It is most prevalent today in North America and Europe, with popular contributors such as Brutal Truth and Nasum. Lyrical themes range from a primary focus on social and political concerns, to gory subject matter and black humor.
Document 9: OhGr: ohGr is a industrial band formed by Nivek Ogre and Mark Walk of Skinny Puppy. Early ohGr releases incorporated hip hop and synthpop influences, and in contrast to Skinny Puppy, utilized conventional structures and a lighter tone. Ogre noted that this direction was inspired by the pop bands he enjoyed as a child, such as The Archies. However, from "Devils in my Details" onwards, ohGr has taken to a more abrasive, non-linear flavour of electro-industrial.
Document 10: Death Grips: Death Grips is an American experimental hip hop band from Sacramento, California, formed in 2010. The group consists of rapper/vocalist MC Ride (Stefan Burnett), drummer/producer/songwriter Zach Hill, and recording engineer Andy Morin. The band has featured guitarist Nick Reinhart of Tera Melos on their albums Fashion Week, Jenny Death and Bottomless Pit. Their musical style draws on hip hop, punk, electronic, noise, and industrial. In 2012, "The Skinny" called them "the first truly important band of the twenty-first century".
Document 11: Fighting Gravity (band): Fighting Gravity was a music group based out of Richmond, Virginia. Originally a ska band called Boy O Boy, Fighting Gravity has incorporated a variety of music into their style, including reggae, rock, and pop. Fighting Gravity was formed while its original members were attending Virginia Tech. Originally, the band consisted of guitarist David "Tree" Triano, bassist/vocalist David Peterson, keyboardist Eric Lawson, trumpeter Jim Pennington, trombonist Chris Leitch, and drummer Mike Boyd. In 1995, Pennington departed and was replaced by saxophonist Karl von Klein. In 1996, Chris Leitch departed and was replaced by trombonist/percussionist John Utley. In 1997, Karl von Klein departed, replaced by saxophonist Mike Ghegan. In 1999, Ghegan departed, replaced by trombonist/turntablist Stefan Demetriadis. Guitarist Michael Sauri replaced a departed Triano in 2000. In 2001, a rotation of horns brought saxophonist Kevin Tyser into the section. The horns were phased out in 2003-2004. Other former members include guitarists Philippe Herndon, Sinakone Phrakhansa and Rich Stine. As of 2007, the band has three core members: Schiavone McGee, David Peterson and Mike Boyd.
Document 12: Ascend the Hill: Ascend the Hill, formerly Ben Davis, are an American worship music band, and they primarily play indie folk and indie rock, all the while being folk rock. They come from Tampa, Florida. The band started making music in 2008, and currently their members are vocalist and guitarist, Joel Davis, lead guitarist, Seth Davis, bassist, Hayden Davidson, and drummer, Jonathan Thomas. The band released one extended play, as Ben Davis, who was their former frontman until his departure in 2009, "Ben Davis", in 2008 independently by themselves. When they signed to Come&Live! Records, they changed their name to Ascend the Hill. Their next release, a studio album, "Ascend the Hill", was released in 2009. They released, another studio album, "Hymns: Take the World, but Give Me Jesus", in 2010, with Come&Live! Records. The subsequent album, also released by Come&Live! Records, "O Ransomed Son", came out in 2012.
Document 13: Gravity Kills (album): Gravity Kills is the debut studio album by industrial rock band Gravity Kills. It was released in 1996 on TVT Records. The album sold just under 500,000 copies.
Document 14: Vas Defrans: Vas Defrans, a five-piece experimental rock band based in North Hollywood, is known for their appearance at the Coachella Valley Music and Arts Festival in the summer of 2008 , as well as their frequent live performances that are both high-energy and display a high level of technical proficiency. The group consists of drummer Kane Ritchotte, guitarists Dash LeFrancis and Cary Singer, vocalist Vincent Coleman, and bassist Max Whipple. Originally LeFrancis performed as the band's vocalist, but in late 2007 he decided to devote his energies to lead guitar and after a short series of auditions, Singer was added in mid-2009, and Coleman in mid-2010. The group is currently gearing up for their first full-length album.
Document 15: Deus (band): Deus (styled as dEUS) is a rock band based in Antwerp, Belgium, whose only continuous members up to the present day are Tom Barman (vocals, guitars) and Klaas Janzoons (keyboards, violin). The rest of the band's line-up currently consists of drummer Stéphane Misseghers, bassist Alan Gevaert and guitarist/backing vocalist Mauro Pawlowski.
ground_truth: yes