Question:  Elisabeth Gürtler is the managing director of what Austrian hotel, featuring an art gallery?

Context paragraphs:
Elisabeth Gürtler: Elisabeth Gürtler-Mauthner (born May 7, 1950) is an Austrian businesswoman.  She is managing director of the Hotel Sacher, Vienna's most famous hotel.

Christchurch Art Gallery: The Christchurch Art Gallery Te Puna o Waiwhetu, commonly known as the Christchurch Art Gallery, is the public art gallery of the city of Christchurch, New Zealand.  It is funded by Christchurch City Council.  It has its own substantial art collection and presents a programme of New Zealand and international exhibitions.  The gallery opened on 11 May 2003, replacing the city's former public art gallery, the Robert McDougall Art Gallery, which opened on 16 June 1932 and closed on 16 June 2002.

Alison Norlen: Alison Norlen (b. 1962, Winnipeg, Manitoba) is a visual artist who is known for large-scale drawing and sculpture installation.  Her work is in private collections in the United States and Canada and in the public collections of the National Gallery of Canada, The Mackenzie Art Gallery, the Confederation Centre Art Gallery, The Rooms Provincial Art Gallery, the Winnipeg Art Gallery, the Mendel Art Gallery, the Manitoba Art Council, The Canada Council Art Bank, and the Saskatchewan Arts Board.

Hotel Sacher: The Hotel Sacher is a five-star hotel located in the Innere Stadt first district of Vienna, Austria, vis-à-vis to the Vienna State Opera.  It is famous for the specialty of the house, the Sachertorte, a chocolate cake with apricot filling.  There is also an art gallery in the hotel with works from the 19th century.  The hotel is built near the former residence of Antonio Vivaldi.

Diane Borsato: Diane Borsato is a Canadian visual artist whose work explores pedagogical practices and experiential ways of knowing through performance, intervention, video, installation, and photography.  Her multidisciplinary and socially engaged works are often created through the mobilization of distinct groups of people including arts professionals, artists, and naturalists.  Her work has been widely exhibited in galleries, museums and artist-run-centres across Canada and internationally, including the Vancouver Art Gallery, Power Plant Contemporary Art Gallery, The Art Gallery of York University(AGYU), the National Museum of Fine Arts of Quebec, Art Metropole, Mercer Union, the Musée d'Art Contemporain in Montreal, and in galleries in the US, France, Germany, Mexico, Taiwan and Japan.  Borsato was a Sobey Art Award nominee in 2011 and 2013 and the recipient of the Victor Martyn Lynch-Staunton Award in 2008 for her research and practices in the Inter-Arts category from the Canada Council for the Arts.  In 2013, she was an artist in residence at The Art Gallery of Ontario where she created actions, like "Tea Service" "(Conservators Will Wash the Dishes)" and "Your Temper, My Weather", that animated the collections and environments of the gallery.  Borsato is an Associate Professor of Interdisciplinary Studio at the University of Guelph where she teaches in the areas of 2D Integrated Media, Extended Practices and in the MFA program.  She creates advanced, thematic studio courses that explore social and conceptual practices that have included "Food and Art", "Special Topics on Walking", "LIVE ART" and "Outdoor School".

Elisabeth Cummings: Elisabeth Cummings (born 1934 in Brisbane), is now one of Australia's most respected living artists and was listed in Australian Art Collector in 2002 as one of the 50 most collectable.  She has won the Fleurieu Art Prize, The Portia Geach Portrait Prize, The Mosman Art Prize, and The Tattersalls Art Prize amongst others,and is represented in many private and public collections including Artbank, The Queensland Art Gallery, The Gold Coast City Art Gallery and the Art Gallery of New South Wales.

Beaverbrook Art Gallery: The Beaverbrook Art Gallery is a public art gallery in Fredericton, New Brunswick, Canada.  It is named after William Maxwell "Max" Aitken, Lord Beaverbrook, who funded the building of the gallery and assembled the original collection.  It opened in 1959 with over 300 works, including paintings by J.M.W. Turner and Salvador Dalí.  The Beaverbrook Art Gallery is New Brunswick's officially designated provincial art gallery.  The building has undergone several expansions, the latest of which began in 2015 and is expected to be completed in 2017.  Gallery director and CEO Terry Graff stated that this "expansion and revitalization" aimed to make the gallery "an important destination for national and international contemporary art".

Linda Duvall: Linda Duvall is a Canadian artist and educator based in Saskatchewan and Toronto.  Her social art projects, exhibitions and research have taken up questions of conscience, truth, and the nature of interpersonal relationships, particularly as they are enacted through conversation.  Her art employs photography, video, installation, performance art, and community-based research including Internet-based archiving.  They often feature invitations for individuals or groups to participate in specific tasks involving conversation or expression.  Overall Duvall's work investigates speech acts (such as, confessions, gossip and expressions of regret), the nature of truth, the process of grieving, intimacy and vulnerability.  Her solo exhibitions have been hosted by Art Gallery of Hamilton, Dunlop Art Gallery, Art Gallery of Mississauga, Museo Nacional de Arte Moderno Guatemala City, Custom House Gallery Westport Ireland, Box Hotel Gallery Barcelona and Thunder Bay Art Gallery.  She has served on a number of boards of artist-run organizations including, Paved Arts, Red Head Gallery, The Photographer's Gallery (now known as PAVED Arts), "BlackFlash" Magazine.

Althea Thauberger: Althea Thauberger was born in Saskatoon, Saskatchewan in 1970.  She is currently based in Vancouver.  Thauberger obtained her Bachelor of Fine Arts in Photography at Concordia University in 2000 and went on to complete her Master of Fine Arts at the University of Victoria in 2002.  In 2003, Thauberger was awarded a Vancouver Arts Development Award and was a regional finalist for the Sobey Art Award.  Her internationally produced and exhibited work typically involves interactions with a group or community that result in performances, films, videos, audio recordings and books, and involve sometimes provocative reflections of social, political, institutional and aesthetic power relations.  Her work has been presented at the 17th Biennale of Sydney; National Gallery of Canada, Ottawa; The Andy Warhol Museum, Pittsburgh; Guangzhou Triennial, China; Manifesta 7, Trento, Italy; Morris and Helen Belkin Art Gallery, Vancouver; Vancouver Art Gallery; BAK, Utrecht; Künstlerhaus Bethanien, Berlin; Kunstverein Wolfsburg, Germany; Art Gallery of Nova Scotia, Halifax; Singapore History Museum; Presentation House Gallery, Vancouver; Museum van Hedendaagse Kunst, Antwerp; Berkeley Art Museum; Insite, San Diego/Tijuana; White Columns, New York; Seattle Art Museum and the 2012 Liverpool Biennial.  Thauberger participated in the 2014 Biennale de Montréal.  In 2008 Thauberger was one of eight artists in the "Exponential Futures" show at the Morris and Helen Belkin Art Gallery, alongside Tim Lee, Alex Morrison, Kevin Schmidt, Corin Sworn, Isabelle Pauwells, Elizabeth Zvonar and Marc Soo.

MacKenzie Art Gallery: The MacKenzie Art Gallery, originally the Norman Mackenzie Art Gallery, is located in Regina, Saskatchewan, Canada.  The MacKenzie Art Gallery has over 100000 sqft of space, with eight galleries totaling 24000 sqft .  It has modern technical areas including conservation lab, workshop, preparation rooms and vault, a 185-seat theatre, public resource centre, gift shop and conference rooms.  The Gallery is visited by about 160,000 visitors a year.  During the summer the gallery is the site for Bazart, an artistic trade show.  The MacKenzie Art Gallery classifies works first according to cultural and geographic provenance, then by medium, and finally by date of execution and artist's name, letting visitors observe the evolution of art.

Supporting paragraphs: Elisabeth Gürtler Hotel Sacher
Answer: The Hotel Sacher