Question: Who was elected mayor in 2018 of the city where Animosity was formed?

full_context: Document 1: Rage Against the Machine: Rage Against the Machine is an American rock band from Los Angeles, California. Formed in 1991, the group consists of vocalist Zack de la Rocha, bassist and backing vocalist Tim Commerford, guitarist Tom Morello, and drummer Brad Wilk. Rage Against the Machine is well known for the members' revolutionary political views, which are expressed in many of the band's songs. As of 2010, they had sold over 16 million records worldwide.
Document 2: Stone Temple Pilots: Stone Temple Pilots (often abbreviated as STP) are an American rock band from San Diego, California, that originally consisted of Scott Weiland (lead vocals), brothers Robert DeLeo (bass, backing vocals) and Dean DeLeo (guitars), and Eric Kretz (drums). From the band's formation in 1989, its line - up remained unchanged until the firing of Weiland in February 2013. Linkin Park vocalist Chester Bennington joined the band in May 2013. In November 2015, Bennington left the band to focus solely on Linkin Park. On December 3, 2015, Weiland was found dead on his tour bus before a performance with his band The Wildabouts. In 2016, the band launched an online audition for a new lead vocalist. On July 20, 2017, Bennington was found dead at his home. His death was ruled as suicide by hanging. On November 14, 2017, Jeff Gutt became the new singer of the band.
Document 3: 2017 Minneapolis mayoral election: No candidate achieved a majority in the first round of ballot counting on election night. Jacob Frey was declared the winner the next day after several rounds of vote tabulations.
Document 4: Animosity (band): Animosity was an American death metal band from San Francisco, California, formed in 2000. The band released three studio albums, toured in United States, Europe and disbanded in 2009. The classic lineup of Animosity consisted of vocalist Leo Miller, guitarists Frank Costa and Chase Fraser, bassist Evan Brewer and drummer Navene Koperweis.
Document 5: Seattle: Like most parts of the United States, government and laws are also run by a series of ballot initiatives (allowing citizens to pass or reject laws), referenda (allowing citizens to approve or reject legislation already passed), and propositions (allowing specific government agencies to propose new laws/tax increases directly to the people). Federally, Seattle is part of Washington's 7th congressional district, represented by Democrat Jim McDermott, elected in 1988 and one of Congress's liberal members. Ed Murray is currently serving as mayor.
Document 6: Christina Olague: Olague was appointed to the post by mayor Ed Lee in the wake of her predecessor Ross Mirkarimi's election to be sheriff of San Francisco. However, she was defeated by challenger London Breed in the San Francisco Board of Supervisors elections, 2012. She was the first openly bisexual person to serve as a San Francisco Supervisor.
Document 7: 2018 Kansas gubernatorial election: On August 7, 2018, Kobach appeared headed for victory over incumbent Governor Jeff Colyer in the Republican gubernatorial primary by an initial margin of 191 votes. By August 9, 2018, his lead stood at 121 votes, but discrepancies in some counties needed resolution, and provisional and absentee ballots may not have been counted in some counties. Democratic Senator Laura Kelly easily won the Democratic nomination. Independent Greg Orman, who finished second in the 2014 U.S. Senate race against incumbent Republican Pat Roberts, is running for governor, again as an independent candidate.
Document 8: Metallica: Metallica is an American heavy metal band. The band was formed in 1981 in Los Angeles, California, by drummer Lars Ulrich and vocalist/guitarist James Hetfield, and has been based in San Francisco, California for most of its career. The group's fast tempos, instrumentals and aggressive musicianship made them one of the founding "big four" bands of thrash metal, alongside Megadeth, Anthrax and Slayer. Metallica's current lineup comprises founding members Hetfield and Ulrich, longtime lead guitarist Kirk Hammett and bassist Robert Trujillo. Guitarist Dave Mustaine (who went on to form Megadeth) and bassists Ron McGovney, Cliff Burton and Jason Newsted are former members of the band.
Document 9: Metallica: This Monster Lives: The book follows the emotional roller-coaster both he and his film partner Bruce Sinofsky and the band Metallica went through during the creation film. The book takes in the time from Berlinger and Sinofsky's first meeting with Metallica in 1999 to the 2003 Summer Sanitarium Tour. Berlinger and Sinofsky's relationship was at an all time low, exacerbated by Berlinger's decision to direct the disastrous sequel to the Blair Witch. At the start of filming the relationship between the band members, especially between vocalist James Hetfield and drummer Lars Ulrich, is in a similarly perilous position after bassist Jason Newsted quit the band and long standing grudges between the remaining members threaten to escalate past the point of no return.
Document 10: Seattle: Seattle's political culture is very liberal and progressive for the United States, with over 80% of the population voting for the Democratic Party. All precincts in Seattle voted for Democratic Party candidate Barack Obama in the 2012 presidential election. In partisan elections for the Washington State Legislature and United States Congress, nearly all elections are won by Democrats. Seattle is considered the first major American city to elect a female mayor, Bertha Knight Landes. It has also elected an openly gay mayor, Ed Murray, and a socialist councillor, Kshama Sawant. For the first time in United States history, an openly gay black woman was elected to public office when Sherry Harris was elected as a Seattle city councillor in 1991. The majority of the current city council is female, while white men comprise a minority.
Document 11: 2018 San Francisco mayoral special election: Eight candidates qualified to appear on the ballot, and a ninth qualified as a write - in. The four major candidates were former Supervisor Angela Alioto, former Acting Mayor London Breed, Supervisor Jane Kim and former State Senator Mark Leno. All four main candidates identify as Democrats, though the position is officially nonpartisan per the Constitution of California. Leno conceded the race to Breed on June 13.
Document 12: San Diego: The members of the city council are each elected from single member districts within the city. The mayor and city attorney are elected directly by the voters of the entire city. The mayor, city attorney, and council members are elected to four-year terms, with a two-term limit. Elections are held on a non-partisan basis per California state law; nevertheless, most officeholders do identify themselves as either Democrats or Republicans. In 2007, registered Democrats outnumbered Republicans by about 7 to 6 in the city, and Democrats currently (as of 2015[update]) hold a 5-4 majority in the city council. The current mayor, Kevin Faulconer, is a Republican.
Document 13: Dance Gavin Dance: Dance Gavin Dance is an American post-hardcore band from Sacramento, California, and formed in 2005. The band currently consists of Tilian Pearson (clean vocals), Jon Mess (unclean vocals), Will Swan (lead guitar), Tim Feerick (bass guitar), and Matthew Mingus (drums, percussion). The band formerly included lead vocalists Jonny Craig and Kurt Travis. Swan and Mingus are the only band members who have appeared on every studio album while Mess has performed on each album but Happiness.
Document 14: Megadeth: In mid-2005, Mustaine organized an annual thrash metal festival tour, Gigantour. Megadeth headlined the inaugural tour with acts such as Dream Theater, Nevermore, Anthrax, and Fear Factory. Performances at the Montreal and Vancouver shows were filmed and recorded for a live DVD-and-CD set released in the second quarter of 2006. On October 9, following the successes of The System Has Failed and the Blackmail the Universe world tour, Mustaine announced to a sold-out crowd at the Pepsi Music Rock Festival in Argentina that Megadeth would continue to record and tour. The concert, held at Obras Sanitarias stadium in Buenos Aires in front of 25,000 fans, was filmed and released on DVD as That One Night: Live in Buenos Aires in 2007.In February 2006, bassist James MacDonough left the band over "personal differences". He was replaced by James LoMenzo, who had worked with David Lee Roth, White Lion, and Black Label Society. The new Megadeth lineup made its live debut headlining the Dubai Desert Rock Festival in the United Arab Emirates with Testament. In March, Capitol released a two-disc DVD, Arsenal of Megadeth, which included archive footage, interviews, live shows, and many of the band's music videos. Due to licensing issues, soundtrack and non-Capitol videos were not included. The second Gigantour began during the third quarter of 2006; Megadeth again headlined, this time with Lamb of God, Opeth, Arch Enemy and Overkill. The 2006 tour included three dates in Australia, supported by Soulfly, Arch Enemy, and Caliban.
Document 15: Botch (band): Botch was an American metalcore band formed in 1993 in Tacoma, Washington. The band, featuring Brian Cook, Dave Knudson, Tim Latona and Dave Verellen, spent four years as a garage band and released several demos and EPs before signing to Hydra Head Records. Through the label, Botch released two studio albums: "American Nervoso" (1998) and "We Are the Romans" (1999). The group toured extensively and internationally in support of their albums with liked-minded bands such as The Blood Brothers, The Dillinger Escape Plan, Ink & Dagger and Jesuit. Botch struggled to write a third studio album, and in 2002 the group broke up due to tensions among the band members and creative differences. Hydra Head posthumously released an EP of songs the group had been working on before they split titled "An Anthology of Dead Ends" and a live album documenting their final show titled "061502" in 2006.
ground_truth: former Acting Mayor London Breed
sub_queries: Animosity >> location of formation Answer: San Francisco
who was elected mayor of San Francisco in 2018 Answer: former Acting Mayor London Breed