Question: From where is the graffiti artist that did advertising work for the aviation company by Thomas Flohr?

full_context: Document 1: VistaJet: VistaJet is a global business aviation company founded in 2004 by Thomas Flohr. The firm flies government, corporate and private clients between any two points, under a "pay for hours flown" fare structure.
Document 2: Miles Regis: Miles Regis (born November 28, 1967), is a Los Angeles-based, Trinidadian multimedia artist whose work taps into the emotion and experiences of exotic cultures around the world and presents them in ways that are relevant to today’s modernized societies. Miles Regis combines abstraction with figurative work; obscure references with in-your-face writings; symbolic narrative with Trinidadian splashes of color. The artist adds to this drip painting and collage work. His media includes oil, acrylic, charcoal, latex paint and occasional newspaper. He works on canvasses already colored, and on some painted with bold colors; his finished compositions take these as their start. Over the years, the USC graduate has honed a technique that incorporates drip painting and collage work that is both unique and striking. With a style reminiscent of many of history’s great master painters, Miles' imagination is saturated with notions, ideas, and images reflective of a world filled with conflicting interests. His cultural duality and diverse perspectives play a large role in the humanistic consciousness he manages to present in his work. With broad enthusiast appeal, his work has appeared in association with CNN, Intel Corporation, Art Basel Miami, Coachella Music And Art Festival, California African American Museum, Million Dollar Listing, NextAid World's Day, CCH Pounder (Avatar, The Shield), Nicolette Sheridan (Desperate Housewives), American Rag Cie, Manifest Equality, Senegal's La Musee Borindar, Adobe, Isaiah Washington (Grey's Anatomy) and several art communities around the country and throughout the world.
Document 3: Temper (artist): Temper is an English graffiti artist. He is most prolific in the advancement of spray paint photorealism in the United Kingdom. He was the first graffiti artist to create a conceptual collection on canvas and revolutionalised portraiture in popular culture globally with his "The Good Die Young" concept and collection in 2002. His groundbreaking 2001 exhibition "Minuteman" was the first by a solo graffiti artist in a public art gallery held at Birmingham Museum and Art Gallery in the United Kingdom and broke attendance records for ethnic minority audience. In 2001 he had his own signature can design on millions of Sprite cans throughout the UK and parts of Europe. During his twenty-two year professional career he has a record of 16 consecutive sellout collections.
Document 4: Shepard Fairey: Frank Shepard Fairey (born February 15, 1970) is an American contemporary street artist, graphic designer, activist, illustrator and founder of OBEY Clothing who emerged from the skateboarding scene. He first became known for his "Andre the Giant Has a Posse" (…OBEY…) sticker campaign while attending the Rhode Island School of Design (RISD), which appropriated images from the comedic supermarket tabloid "Weekly World News".
Document 5: PrivatAir: PrivatAir is a Swiss airline operating business jets, headquartered at Geneva Airport in Meyrin. It operates scheduled services for other airlines as well as charter flights for corporations and VIPs.
Document 6: Marc Ecko: Marc Louis "Eckō" Milecofsky (born August 29, 1972) is an American fashion designer, entrepreneur, and artist. He is the founder and Chief Creative Officer of Ecko Unlimited, a billion-dollar global fashion company. He also founded "Complex" magazine in 2002.
Document 7: CityJet: CityJet is an Irish regional airline with headquarters in Swords, County Dublin. It operates its own scheduled services out of London City Airport and to a lesser extent Dublin Airport, where it has maintenance facilities. The airline also operates wet-lease services on behalf of Air France (until October 2017), Scandinavian Airlines and Brussels Airlines. Air France sold CityJet to "Intro Aviation" in May 2014. In March 2016 the airline was bought by founder Pat Byrne and other investors.
Document 8: Virgin Atlantic GlobalFlyer: The Scaled Composites Model 311 Virgin Atlantic GlobalFlyer (registered N277SF) is an aircraft designed by Burt Rutan in which Steve Fossett flew a solo nonstop airplane flight around the world in 2 days 19 hours and 1 minute (67 hours 1 minute) from February 28 to March 3, 2005. The flight speed of 590.7 kph set the world record for the fastest nonstop non-refueled circumnavigation, beating the mark set by the previous Rutan-designed Voyager aircraft at 9 days 3 minutes and an average speed of 116 mph .
Document 9: Robert Vargas (artist): Robert Vargas is a contemporary artist known for his mixed-media portraits, murals and live events. He was born and raised in the Los Angeles neighborhood of Boyle Heights. Vargas is a leading creative force in the revitalization of Downtown LA’s art scene. His paintings and drawings infuse classic genres of portraiture and nudes with an avant-garde explosivity that not only captures the visage and likeness of his subjects, but seems to excavate the intimate aspects of their character. Vargas selects his subjects intuitively at his highly attended live-painting sessions, creating powerful and sublime representations of the human connection through his portraiture. His visual vocabulary pulls from life experience, a viscerally sensual approach to line and texture, and an almost mannerist choreography of abstraction and representation that combine to unforgettable effect in his portraits. His best-known works include a City of L.A. commissioned mural "Cant Stop" of legendary Suicidal Tendencies frontman, "Mike Muir, and his "Warrior Odyssey" mural of skateboard Icon and Z-boy legend, Tony Alva for the Kinney Hotel in Venice. In 2013, Vargas was a key figure in helping Los Angeles lift its street art ban while creating his masterpiece, "Our Lady Of DTLA" a four story mural on Spring street in the heart of downtown L.A. In May 2011, Vargas was named one of LA Weekly's People of the Year and was featured on a limited-edition cover of the issue. His public mural work both in Los Angeles and throughout the world he sees as a means to reach a wider audience and promote accessible art and community through the creative process. Continuing to shape the way the city’s history is written, in the Summer of 2017 he will begin work on his biggest project yet: a fourteen-story mural in L.A. that will rank as the largest mural in the world by a single artist.
Document 10: Universal Weather and Aviation: Universal Weather and Aviation, Inc. (commonly called Universal or Universal Weather) is a privately held company headquartered in Houston, Texas that provides products and services for the general aviation industry. Its customers include owners and operators of business jets for corporate and personal air travel. The company offers products and services including international flight planning and scheduling, weather briefings, fueling programs, aircraft ground handling, and aviation security. It is the oldest company in the corporate flight planning industry.
Document 11: Retna: RETNA (born Marquis Lewis 1979) is a contemporary artist, primarily recognized for graffiti art. He was born and raised in Los Angeles, and started his career in the early 1990s. He developed a distinctive constructed script which is derived from Blackletter, Egyptian Hieroglyphics, Arabic, and Hebrew calligraphy, as well as more traditional types of street-based graffiti. In addition to exhibiting at institutions and galleries in Los Angeles, Miami, London, New York and Hong Kong, Retna has done advertising work for brands such as VistaJet, Louis Vuitton, and Nike. His artwork adorns the cover of Justin Bieber's Purpose album that debuted in 2015.
Document 12: FlyMe: Fly Me Europe AB, operating as FlyMe, was a low-cost airline based in Gothenburg, Sweden. It operated flights from Gothenburg, Stockholm and Malmö to destinations within Europe. Its main hub was Göteborg Landvetter Airport, with hubs at Malmö Airport and Stockholm-Arlanda Airport. Beginning in April 2006, it widened its destination network and started daily services to European destinations. Majority owner of the business was English Billionaire John Robert Porter and his Norwegian business partner Christen Ager-Hanssen. They also had a majority interest in another airline Global Supply Systems a British all cargo carrier. FlyMe acquired in late 2006 a 25% stake in Global Supply Systems holding company Riverdon ltd with the aim to create a low cost long haul product.
Document 13: Brad Lawrence: Brad Lawrence is the founder of the psychedelic art company Black Light Visuals. In 2011, Lawrence graduated from College for Creative Studies in Detroit with a Bachelor of Fine Arts degree. Lawrence specialized in hyperrealism charcoal drawings, but only completed two pieces after college before he developed acute tendonitis in both arms. The end of Lawrence's drawing career sparked his interest in other forms of art. Inspired by his father's classic black light screen printing shop, Lawrence began to experiment in abstract black light art. This led him to discover a new method of traditional paper marbling, which he began to market with paintings on clothing items, such as shirts, hats, and shoes. These items later became the source of income for his independently-owned apparel and body marbling company, Black Light Visuals.
Document 14: Vistara: Tata SIA Airlines Limited, operating as Vistara, is an Indian domestic airline based in Gurgaon with its hub at Delhi-Indira Gandhi International Airport. The carrier, a joint venture between Tata Sons and Singapore Airlines, commenced operations on 9 January 2015 with its inaugural flight between Delhi and Mumbai. The airline had carried more than two million passengers by June 2016 and as of May 2017, has a 3.3% share of the domestic carrier market, making it the 6th largest domestic airline. The airline operates to nineteen destinations with a fleet of Airbus A320-200 aircraft. Vistara was the first airline to introduce premium economy seats on domestic routes in India.
Document 15: Air Partner: Air Partner Plc is a global aviation services group. The Group is structured into four reporting divisions: Commercial Jet air charter, Private Jet Charter, air freight and Baines Simmons. The Commercial Jet division charters large airliners to move groups of any size. They also provide remarketing programmes for all types of commercial and corporate aircraft. Air Partner is headquartered alongside Gatwick airport in the United Kingdom. Air Partner operates 24/7 year-round and has 20 offices across Europe, North America, the Middle East and Asia. The company is publicly listed on the London Stock Exchange as LSE: [ AIR] , and is also ISO 9001:2008 compliant for commercial airline and private jet solutions worldwide.
ground_truth: Los Angeles