Information: - A television channel is a physical or virtual channel over which a television station or television network is distributed. For example, in North America, "channel 2" refers to the broadcast or cable band of 54 to 60 MHz, with carrier frequencies of 55.25MHz for NTSC analog video (VSB) and 59.75MHz for analog audio (FM), or 55.31MHz for digital ATSC (8VSB). Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider. - Terrestrial television or broadcast television is a type of television broadcasting in which the television signal is transmitted by radio waves from the terrestrial (Earth based) transmitter of a television station to a TV receiver having an antenna. The term is more common in Europe, while in North America it is referred to as broadcast television or sometimes over-the-air television (OTA). The term "terrestrial" is used to distinguish this type from the newer technologies of satellite television (direct broadcast satellite or DBS television), in which the television signal is transmitted to the receiver from an overhead satellite, and cable television, in which the signal is carried to the receiver through a cable. - A television station is a business, organisation or other enterprise, such as an amateur television (ATV) operator, that transmits (broadcasts) content over terrestrial television. A television transmission can occur via analog television signals or, more recently, via digital television signals. Broadcast television systems standards are set by the government, and these vary around the world. Television stations broadcasting over an analog system were typically limited to one television channel, but digital television enables broadcasting via subchannels as well. The term "television station" is normally applied to terrestrial television stations, and not to cable television or satellite television broadcasting. - Amateur television (ATV) is the transmission of broadcast quality video and audio over the wide range of frequencies of radio waves allocated for radio amateur (Ham) use. ATV is used for non-commercial experimentation, pleasure and public service events. Ham TV stations were on the air in many cities before commercial television stations came on the air. Various transmission standards are used, these include the broadcast transmission standards of NTSC in North America and Japan, and PAL or SECAM elsewhere, utilizing the full refresh rates of those standards. ATV includes the study of building of such transmitters and receivers, and the study of radio propagation of signals travelling between transmitting and receiving stations. - KEMO - TV , virtual channel 50 ( UHF digital channel 32 ) , is an Azteca America - affiliated television station serving the San Francisco Bay Area that is licensed to Santa Rosa , California , United States . The station is owned by Northstar Media , LLC. KEMO maintains studios and offices located on 533 Mendocino Ave in Santa Rosa and sales offices in San Jose , and its transmitter is located atop Mount St. Helena . The station is available on cable via Comcast channel 31 , and 719 HD . Given the information above, choose from the list below the object entity that exhibits the relation 'continent' with the subject 'kemo-tv'. Choices: - europe - north america
north america

Information: - Black metal is an extreme subgenre and subculture of heavy metal music. Common traits include fast tempos, a shrieking vocal style, heavily distorted guitars played with tremolo picking, raw (lo-fi) recording, unconventional song structures, and an emphasis on atmosphere. Artists often appear in corpse paint and adopt pseudonyms. - Heavy metal (or simply metal) is a genre of rock music that developed in the late 1960s and early 1970s, largely in the United Kingdom and the United States. With roots in blues rock and psychedelic/acid rock, the bands that created heavy metal developed a thick, massive sound, characterized by highly amplified distortion, extended guitar solos, emphatic beats, and overall loudness. Heavy metal lyrics and performance styles are sometimes associated with aggression and machismo. - Stian Aarstad is a Norwegian pianist and keyboard player best known for his five - year ( 1992 -- 97 ) stint with the black metal band Dimmu Borgir during which he played keyboards and synthesizers while engendering criticism and controversy for appearing onstage and performing in a top - hat - and - cape outfit reminiscent of Jack the Ripper , while wearing minimal corpse makeup and not moving or showing any emotion . Upon joining Dimmu Borgir , he did n't listen to metal music , preferring only to listen to classical . In 1998 to 1999 , he produced a demo - EP for the unblack metal band Vaakevandring . In the 2000s , Aarstad had been the pianist for the band Enthral , but left his regular position during the recording of the band 's third album . - Dimmu Borgir (or or ) is a Norwegian symphonic black metal band from Oslo, Norway, formed in 1993. The name is derived from Dimmuborgir, a volcanic formation in Iceland, the name of which means "dark cities" or "dark castles/fortresses" in Icelandic, Faroese and Old Norse. The band has been through numerous lineup changes over the years; guitarist Silenoz and vocalist Shagrath are the only original members who still remain with guitarist Galder being a longstanding member. - Jack the Ripper is the best known name given to an unidentified serial killer generally believed to have been active in the largely impoverished areas in and around the Whitechapel district of London in 1888. The name "Jack the Ripper" originated in a letter written by someone claiming to be the murderer that was disseminated in the media. The letter is widely believed to have been a hoax and may have been written by journalists in an attempt to heighten interest in the story and increase their newspapers' circulation. The killer was called "the Whitechapel Murderer" as well as "Leather Apron" within the crime case files, as well as in contemporary journalistic accounts. - Whitechapel is a district in the East End of London, England, in the London Borough of Tower Hamlets. - London is the capital and most populous city of England and the United Kingdom, as well as the most populous city proper in the European Union. Standing on the River Thames in the south east of the island of Great Britain, London has been a major settlement for two millennia. It was founded by the Romans, who named it "Londinium". London's ancient core, the City of London, largely retains its medieval boundaries. Since at least the 19th century, "London" has also referred to the metropolis around this core, historically split between Middlesex, Essex, Surrey, Kent, and Hertfordshire, which today largely makes up Greater London, governed by the Mayor of London and the London Assembly. - Dimmuborgir ("dimmu" "dark", "borgir" "cities" or "forts", "castles"); pronounced ) is a large area of unusually shaped lava fields east of Myvatn in Iceland. The Dimmuborgir area is composed of various volcanic caves and rock formations, reminiscent of an ancient collapsed citadel (hence the name). The dramatic structures are one of Iceland's most popular natural tourist attractions. Given the information above, choose from the list below the object entity that exhibits the relation 'country of citizenship' with the subject 'stian aarstad'. Choices: - england - iceland - london - norway - united kingdom
norway