Input: Read this: With his third album, Graduation (2007), West moved away from the sound of his previous releases and towards a more atmospheric, rock-tinged, electronic-influenced soundscape. The musical evolution arose from him listening to music genres encompassing European Britpop and Euro-disco, American alternative and indie-rock, and his native Chicago house. Towards this end, West retracted much of the live instrumentation that characterized his previous album and replaced it with heavy, gothic synthesizers, distorted synth-chords, rave stabs, house beats, electro-disco rhythms, and a wide array of modulated electronic noises and digital audio-effects. In addition, West drew musical inspiration from arena rock bands such as The Rolling Stones, U2, and Led Zeppelin in terms of melody and chord progression.
Question: What was the name of Kanye's third record?

Output: Graduation


Input: Read this: The term "Late Middle Ages" refers to one of the three periods of the Middle Ages, along with the Early Middle Ages and the High Middle Ages. Leonardo Bruni was the first historian to use tripartite periodization in his History of the Florentine People (1442). Flavio Biondo used a similar framework in Decades of History from the Deterioration of the Roman Empire (1439–1453). Tripartite periodization became standard after the German historian Christoph Cellarius published Universal History Divided into an Ancient, Medieval, and New Period (1683).
Question: Who was the author of "Decades of History from the Deterioration of the Roman Empire

Output: Flavio Biondo


Input: Read this: In 2000, the United Nations Development Programme, UN Department of Economic and Social Affairs, and World Energy Council published an estimate of the potential solar energy that could be used by humans each year that took into account factors such as insolation, cloud cover, and the land that is usable by humans. The estimate found that solar energy has a global potential of 1,575–49,837 EJ per year (see table below).
Question: What was the total potential of solar energy found in the estimate?

Output: 1,575–49,837 EJ per year


Input: Read this: In 1867, Prince Alfred, Duke of Edinburgh and second son of Queen Victoria, visited the islands. The main settlement, Edinburgh of the Seven Seas, was named in honour of his visit. Lewis Carroll's youngest brother, the Reverend Edwin Heron Dodgson, served as an Anglican missionary and schoolteacher in Tristan da Cunha in the 1880s.
Question: When did the third son of Queen Victoria visit the islands?

Output:
unanswerable