Question: In 2018, who was elected mayor of the city where Recology is headquartered?

full_context: Document 1: 2017 San Antonio mayoral election: On May 6, 2017, the city of San Antonio, Texas held an election to choose the next mayor of San Antonio. As no candidate secured a majority of the vote (50% of all votes cast + 1), a runoff was held on June 10, 2017 with Councilman Ron Nirenberg defeating incumbent mayor Ivy Taylor.
Document 2: 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 3: Recology: Recology is an integrated resource recovery company headquartered in San Francisco, California. The company collects and processes municipal solid waste, reclaiming useful materials that would have otherwise been buried in a landfill. The company also operates transfer stations, materials recovery facilities (MRFs), a number of landfills, and continues to spearhead renewable energy projects. Recology is the largest organics compost facility operator by volume in the United States.
Document 4: San Diego: San Diego hosts several major producers of wireless cellular technology. Qualcomm was founded and is headquartered in San Diego, and is one of the largest private-sector employers in San Diego. Other wireless industry manufacturers headquartered here include Nokia, LG Electronics, Kyocera International., Cricket Communications and Novatel Wireless. The largest software company in San Diego is security software company Websense Inc. San Diego also has the U.S. headquarters for the Slovakian security company ESET. San Diego has been designated as an iHub Innovation Center for collaboration potentially between wireless and life sciences.
Document 5: 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 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: 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 8: 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 9: Santa Monica, California: The city is also in the process of implementing a 5-year and 20 year Bike Action Plan with a goal of attaining 14 to 35% bicycle transportation mode share by 2030 through the installation of enhanced bicycle infrastructure throughout the city. Other environmentally focused initiatives include curbside recycling, curbside composting bins (in addition to trash, yard-waste, and recycle bins), farmers' markets, community gardens, garden-share, an urban forest initiative, a hazardous materials home-collection service, green business certification, and a municipal bus system which is currently being revamped to integrate with the soon-to-open Expo Line.
Document 10: Santa Monica, California: Santa Monica is one of the most environmentally activist municipalities in the nation. The city first proposed its Sustainable City Plan in 1992 and in 1994, was one of the first cities in the nation to formally adopt a comprehensive sustainability plan, setting waste reduction and water conservation policies for both public and private sector through its Office of Sustainability and the Environment. Eighty-two percent of the city's public works vehicles now run on alternative fuels, including nearly 100% of the municipal bus system, making it among the largest such fleets in the country. Santa Monica fleet vehicles and Buses now source their natural gas from Redeem, a Southern California-based supplier of renewable and sustainable natural gas obtained from non-fracked methane biogas generated from organic landfill waste.
Document 11: San Francisco Bay National Wildlife Refuge Complex: San Francisco Bay National Wildlife Refuge Complex is a National Wildlife Refuge complex in the state of California, comprising seven separate wildlife refuges in and around San Francisco Bay. They are administered by the U.S. Fish and Wildlife Service. The complex is also responsible for the Common Murre Restoration Project, designed to protect seabird life on the California central cost, including the Common Murre. The project hopes to establish a colony of murres at Devil's Slide Rock near Pacifica.
Document 12: San Francisco: San Francisco (initials SF) (/ ˌsæn frənˈsɪskoʊ /, Spanish for Saint Francis; Spanish: (san franˈsisko)), officially the City and County of San Francisco, is the cultural, commercial, and financial center of Northern California. The consolidated city - county covers an area of about 47.9 square miles (124 km), mostly at the north end of the San Francisco Peninsula in the San Francisco Bay Area. It is the fourth-most populous city in California, and the 13th-most populous in the United States, with a 2016 census - estimated population of 870,887. The population is projected to reach 1 million by 2033. As of 2016, San Francisco County was the 7th highest - income county in the United States, with a per capita personal income of $110,418.
Document 13: 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 14: EnergySolutions: EnergySolutions (stylized as Energy"Solutions"), headquartered in Salt Lake City, Utah, is one of the world's largest processors of low level waste (LLW), and is the largest nuclear waste company in the United States. It was founded by Steve Creamer in 2007 through the merger of four waste disposal companies: Envirocare, Scientech D&D, BNG America, and Duratek.
Document 15: 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.
ground_truth: former Acting Mayor London Breed
sub_queries: Recology >> headquarters location Answer: San Francisco
who was elected mayor of San Francisco in 2018 Answer: former Acting Mayor London Breed