Context_1 : The Eurovision Song Contest 2015 was the 60th edition of the annual Eurovision Song Contest musical event. The contest took place in Vienna, Austria, following Austrian Conchita Wurst's victory in the 2014 edition. This was the second time that Austria hosted the contest; the 1967 edition being the first (also hosted in Vienna). The 2015 contest consisted of two semi-finals, which took place on 3-4 October, and a final, held on 5 October 2015. The shows were presented by Mirjam Weichselbraun, Alice Tumler and Arabella Kiesbauer while Conchita Wurst was hosting the green room. Forty countries participated in the contest, with Australia making a guest appearance, and Cyprus , the Czech Republic , and Serbia returning. Ukraine , however, announced their withdrawal due to financial and political reasons around the Ukrainian crisis. Context_2 : Dennis Levy (born December 26, 1948) is an African-American community organizer and public health activist living with HIV/AIDS. He is also a long-term nonprogressor diagnosed in 1992. Levy is the CEO and founder of Black and Latino AIDS Coalition, Inc (Blac) Blac NY is a community-based AIDS advocacy organization. It advocates on behalf of Black and Latino people with AIDS and their families and works for prevention of HIV and AIDS. In 1998, Levy helped pass HIV Reporting and Partner Notification. It was the most controversial HIV legislation in New York State history . The legislation changed the way New York State tracked new HIV and AIDS cases i.e. Partner Notification. Prior to the legislation, the federal government's Ryan White Program allocated money based on the proportion of patients with AIDS in each region. The highest number of AIDS cases was in New York City among white gay men. Consequently, the white gay population received the most money. The new legislation changed this allocation to give more funding to people who were newly diagnosed with HIV infection. A majority of people with HIV diagnoses were black and Latino heterosexuals. Assemblywoman Nettie Mayersohn sponsored a Bill that required people infected with HIV to notify their sexual partners. The 'Black and Latino AIDS Coalition' was the only AIDS organization in New York State to support Assemblywoman Mayersohn's bill. Levy engaged in heated debates raging in the HIV community concerning the need for establishing a system of tracking HIV infection. Context_3 : The ninth edition of Dancing Stars will be broadcast from March 7, 2014 on ORF1 and will be presented by Mirjam Weichselbraun and Klaus Eberhartinger. Context_4 : Mirjam Weichselbraun (born 27 September 1981 in Innsbruck, Austria) is an Austrian television host and actress, best known in Austria for presenting "Dancing Stars", Life Ball and the Vienna Opera Ball. She is best known outside Austria for presenting the Eurovision Song Contest in 2015. Context_5 : The eleventh edition of Dancing Stars will be broadcast from March 31, 2017 on ORF1 and presented by Mirjam Weichselbraun and Klaus Eberhartinger. Context_6 : The tenth edition of Dancing Stars will be broadcast from March 4, 2016 on ORF1 and will be presented by Mirjam Weichselbraun and Klaus Eberhartinger. Context_7 : In South Africa, HIV/AIDS denialism had a significant impact on public health policy from 1999 to 2008, during the presidency of Thabo Mbeki. Mbeki criticized the scientific consensus that HIV does cause AIDS beginning shortly after his election to the presidency. In 2000, he organized a Presidential Advisory Panel regarding HIV/AIDS including several scientists who denied that HIV caused AIDS. In the following eight years of his presidency, Mbeki continued to express sympathy for HIV/AIDS denialism, and instituted policies denying antiretroviral drugs to AIDS patients. Instead of providing these drugs, which he described as "poisons", shortly after he was elected to the presidency, he appointed Manto Tshabalala-Msimang as the country's health minister, who promoted the use of unproven herbal remedies such as ubhejane, garlic, beetroot, and lemon juice to treat AIDS, which led to her acquiring the nickname "Dr. Beetroot." These policies have been blamed for the preventable deaths of between 343,000 and 365,000 people from AIDS. As of 2008, Mbeki has remained silent about his views and policies on AIDS; according to "The New York Times", his spokesman, Mukoni Ratshitanga, said Mr. Mbeki would not discuss his thinking on HIV and AIDS, explaining that policy decisions were made collectively by the cabinet and so questions should be addressed to the government. Upon becoming president in 2008, Mbeki's successor, Kgalema Motlanthe, appointed Barbara Hogan as health minister to replace Tshabalala-Msimang on the first day of his presidency. Hogan told "The New York Times", “The era of denialism is over completely in South Africa.” Context_8 : The eighth edition of Dancing Stars was broadcast from March 1 to May 17, 2013 on ORF1 and was presented by Mirjam Weichselbraun and Klaus Eberhartinger. Context_9 : The seventh edition of Dancing Stars was broadcast from 9 March to 18 May 2012 on ORF1 and was presented by Mirjam Weichselbraun and Klaus Eberhartinger. Context_10 : The Life Ball in Vienna is the biggest charity event in Europe supporting people with HIV or AIDS. The event is organized by the nonprofit organization AIDS LIFE, which was founded in 1992 by Gery Keszler and Torgom Petrosian. fact_1 : Mirjam Weichselbraun (born 27 September 1981 in Innsbruck, Austria) is an Austrian television host and actress, best known in Austria for presenting "Dancing Stars", Life Ball and the Vienna Opera Ball. fact_2 : The Life Ball in Vienna is the biggest charity event in Europe supporting people with HIV or AIDS. Question: Mirjam Weichselbraun presented what charity event in Europe that supports people with HIV or AIDS?
Output: Life Ball