Question: What genre of music links the bands Catherine and X? 

full_context: Document 1: Germs (band): The Germs were an American punk rock band from Los Angeles, California, United States, originally active from 1977 to 1980. The band's main early lineup consisted of singer Darby Crash, guitarist Pat Smear, bassist Lorna Doom and drummer Don Bolles. They released only one album, 1979's "(GI)", produced by Joan Jett, and were featured the following year in Penelope Spheeris' documentary film "The Decline of Western Civilization", which chronicled the Los Angeles punk movement.
Document 2: X-Sinner: X-Sinner is an American hard rock band formed in 1988 by guitarist Greg Bishop. The band is known for having a very similar sound to that of AC/DC, Kix and Def Leppard and has continued performing and releasing albums today. Originating in the White Metal scene, the band has expanded their fan base into mainstream metal over the years with great success. They were named the favorite new band of 1989 by the readers of "HM Magazine", and their debut album "Get It" was one of the most talked about albums within the white metal scene at the time. Their first two albums were produced by John Elefante formerly of the band Kansas and released on Pakaderm Records, as well as on the mainstream A&M Records label of Hollywood. They have released five full-length albums including the latest album "A World Covered In Blood" now on Image Records. Experiencing a resurgence of interest with the release of "World Covered In Blood" in 2009/10, the band has gone on to perform in Europe recently as well as concerts in the U.S. and Canada. The band has opened for many mainstream metal artists like Warrant and Paul Dianno as well as headlining and performing at rock festivals and performing concerts of their own. The band has united with members of Rex's new side project GX for their live performances recently and have added that material to their live set list. X-Sinner's album, "Going Out With a Bang", will be released track by track starting in 2014.
Document 3: Touch and Go Records: Touch and Go Records is an American independent record label based in Chicago, Illinois. After its genesis as a handmade fanzine in 1979, it grew into one of the key record labels in the American 1980s underground and alternative rock scenes. Touch & Go carved out a reputation for releasing adventurous noise rock by the likes of the Butthole Surfers, Big Black, and The Jesus Lizard. Along with other independent American labels such as Twin/Tone, SST Records, and Dischord, Touch & Go helped to spearhead the nationwide network of underground bands that formed the pre-Nirvana indie rock scene. These labels presided over the shift from the hardcore punk that then dominated the American underground scene to the more diverse styles of alternative rock that were emerging.
Document 4: Static-X: Static-X was an American industrial metal band from Los Angeles, California formed in 1994. The line-up fluctuated over the years, but always held constant with band founder, frontman, vocalist, and guitarist Wayne Static. Founders of the band were Wayne Static and original drummer Ken Jay. The band rose to fame with their 1999 debut album "Wisconsin Death Trip" where the band's heavy industrial metal sound found attention within the burgeoning nu metal movement of the late 1990s, with the album eventually going platinum in the United States. The band released five more albums over the course of the next decade: "Machine" in 2001, "Shadow Zone" in 2003, "Start a War" in 2005, "Cannibal" in 2007, and "Cult of Static" in 2009.
Document 5: TVT Records: TVT Records was an American record label founded by Steve Gottlieb. Over the course of its 25-year history, the label released some 25 Gold, Platinum and Multi-platinum releases. Its roster included Nine Inch Nails, Ja Rule, Lil Jon, Underworld, KMFDM, Gravity Kills, The KLF, The Baldwin Brothers, Sevendust, Nothingface, the Wellwater Conspiracy, Brian Jonestown Massacre, The Holloways, The Cinematics, Buck-O-Nine, DJ Hurricane, Speech and Pitbull. Its biggest commercial successes were the triple platinum Nine Inch Nails's "Pretty Hate Machine", two double platinum releases by Lil Jon, and platinum releases by Snoop Dogg and Tha Eastsidaz, Dashboard Confessional, Default and Ying Yang Twins as well as gold releases by Sevendust, Gravity Kills and The Black Crowes and Jimmy Page. Additionally, TVT also had success overseas, achieving a gold release in Germany and Sweden with The Connells and scored platinum and gold records in Canada with Default.
Document 6: The Smashing Pumpkins: The Smashing Pumpkins are an American alternative rock band from Chicago, Illinois, formed in 1988. Formed by frontman Billy Corgan (lead vocals, guitar) and James Iha (guitar), the band included D'arcy Wretzky (bass guitar) and Jimmy Chamberlin (drums) in its original incarnation. It has undergone many line-up changes over the course of its existence, with the current lineup being Corgan and rhythm guitarist Jeff Schroeder.
Document 7: Catherine (alternative rock band): Catherine was an alternative rock band from Chicago, Illinois that was active from 1985 to 1998. They were signed to TVT Records.
Document 8: X-Pistols: X Pistols is a punk rock band from Southern California and Oregon, formed in 2010. Brad "Daddy X" Xavier (former Doggy Style frontman, Humble Gods and Kottonmouth Kings frontman), David "The Dirtball" Alexander (Kottonmoth Kings frontman), D.I. members TNT, Joey Glock, and Colt Clayton make up the band. In 2011, X-Pistols released their debut album Shoot to Kill, on Suburban Noize Records.
Document 9: The Smashing Pumpkins discography: The discography of the Smashing Pumpkins, an American alternative rock band formed in Chicago, Illinois, consists of nine studio albums, four live albums, one digital live album series, seven compilation albums (including box sets and promotional releases), five extended plays (including promotional releases), 42 singles (including promotional releases), four video albums, 23 music videos, and contributions to five soundtrack albums. This list does not include material recorded by The Smashing Pumpkins members with other side projects.
Document 10: Chicago 18: Chicago 18 is the fifteenth studio album by the American band Chicago, released on September 29, 1986. As the successor to 1984's multiplatinum hit "Chicago 17", this album is the first without cofounding member Peter Cetera. This is also the first album to feature Jason Scheff on bass guitar and vocals.
Document 11: Descendents: The Descendents are a punk rock band formed in 1977 in Manhattan Beach, California by guitarist Frank Navetta, bassist Tony Lombardo and drummer Bill Stevenson. In 1980, they enlisted Stevenson's school friend Milo Aukerman as a singer, and reappeared as a punk rock band, becoming a major player in the hardcore punk scene developing in Los Angeles at the time. They have released seven studio albums, three live albums, three compilation albums, and three EPs. Since 1986, the band's lineup has consisted of singer Milo Aukerman, guitarist Stephen Egerton, bassist Karl Alvarez, and drummer Bill Stevenson.
Document 12: X (American band): X is an American punk rock band, formed in Los Angeles in 1977, among the first wave of American punk. The original members are vocalist Exene Cervenka, vocalist/bassist John Doe, guitarist Billy Zoom and drummer D.J. Bonebrake. The band released seven studio albums from 1980 to 1993. After a period of inactivity during the mid to late 1990s, X reunited in the early 2000s, and currently tours.
Document 13: Catherine Wheel: Catherine Wheel were an English alternative rock band from Great Yarmouth. The band was active from 1990 to 2000, experiencing fluctuating levels of commercial success, and embarking on many lengthy tours.
Document 14: Infinity Cat Recordings: Infinity Cat Recordings is an independent record label founded in 2002 and based in Nashville, Tennessee. The label has released recordings from artists including JEFF the Brotherhood, Diarrhea Planet, Be Your Own Pet, Ed Schrader's Music Beat, and Daddy Issues. In 2011, the label was highlighted by British publication The Guardian, which wrote "forget the Grand Ole Opry; there are more thrilling new bands in East Nashville than anywhere else on earth [and] so many of their records have been released on the same label, Infinity Cat."
Document 15: The Dead Boys: The Dead Boys are an American punk rock band from Cleveland, Ohio. The band was among the first wave of early punk bands, and was known as one of the rowdiest and most violent punk groups of the era. The Dead Boys were initially active from 1976 to 1979, briefly reuniting in 1986, and then later again in 2004 and 2005 for the first time without their frontman Stiv Bators, who had died in 1990. In September 2017, founding members Cheetah Chrome and Johnny Blitz reunited the band with a new lineup for a 40th anniversary tour along with a new album, "", a re-recording of their debut album.
ground_truth: rock