Input: Read this: During Hayek's years at the University of Vienna, Carl Menger's work on the explanatory strategy of social science and Friedrich von Wieser's commanding presence in the classroom left a lasting influence on him. Upon the completion of his examinations, Hayek was hired by Ludwig von Mises on the recommendation of Wieser as a specialist for the Austrian government working on the legal and economic details of the Treaty of Saint Germain. Between 1923 and 1924 Hayek worked as a research assistant to Prof. Jeremiah Jenks of New York University, compiling macroeconomic data on the American economy and the operations of the US Federal Reserve.
Question: What work did Hayek begin in 1923?

Output: research assistant

Input: Read this: West's outspoken views and ventures outside of music have received significant mainstream attention. He has been a frequent source of controversy and public scrutiny for his conduct at award shows, on social media, and in other public settings. His more publicized comments include his declaration that President George W. Bush "doesn't care about black people" during a live 2005 television broadcast for Hurricane Katrina relief, and his interruption of singer Taylor Swift at the 2009 MTV Video Music Awards. West's efforts as a designer include collaborations with Nike, Louis Vuitton, and A.P.C. on both clothing and footwear, and have most prominently resulted in the Yeezy Season collaboration with Adidas beginning in 2013. He is the founder and head of the creative content company DONDA.
Question: What President did Kanye West insult on air in 2005?

Output: George W. Bush

Input: Read this: Back in Warsaw that year, Chopin heard Niccolo Paganini play the violin, and composed a set of variations, Souvenir de Paganini. It may have been this experience which encouraged him to commence writing his first Etudes, (182932), exploring the capacities of his own instrument. On 11 August, three weeks after completing his studies at the Warsaw Conservatory, he made his debut in Vienna. He gave two piano concerts and received many favourable reviewsin addition to some commenting (in Chopin's own words) that he was "too delicate for those accustomed to the piano-bashing of local artists". In one of these concerts, he premiered his Variations on La ci darem la mano, Op. 2 (variations on an aria from Mozart's opera Don Giovanni) for piano and orchestra. He returned to Warsaw in September 1829, where he premiered his Piano Concerto No. 2 in F minor, Op. 21 on 17 March 1830.
Question: What piece did Chopin debut after returning to Warsaw?

Output: Piano Concerto No. 2 in F minor, Op. 21

Input: Read this: In 2004, the Swaziland government acknowledged for the first time that it suffered an AIDS crisis, with 38.8% of tested pregnant women infected with HIV (see AIDS in Africa). The then Prime Minister Themba Dlamini declared a humanitarian crisis due to the combined effect of drought, land degradation, increased poverty, and HIV/AIDS. According to the 2011 UNAIDS Report, Swaziland is close to achieving universal access to HIV/AIDS treatment, defined as 80% coverage or greater. Estimates of treatment coverage range from 70% to 80% of those infected. Life expectancy had fallen from 61 years in 2000 to 32 years in 2009. Tuberculosis is also a significant problem, with an 18% mortality rate. Many patients have a multi-drug resistant strain, and 83% are co-infected with HIV.
Question: What has the life expectancy risen to since 2000?

Output:
unanswerable