Problem: Aves and a sister group, the clade Crocodilia, contain the only living representatives of the reptile clade Archosauria. During the late 1990s, Aves was most commonly defined phylogenetically as all descendants of the most recent common ancestor of modern birds and Archaeopteryx lithographica. However, an earlier definition proposed by Jacques Gauthier gained wide currency in the 21st century, and is used by many scientists including adherents of the Phylocode system. Gauthier defined Aves to include only the crown group of the set of modern birds. This was done by excluding most groups known only from fossils, and assigning them, instead, to the Avialae, in part to avoid the uncertainties about the placement of Archaeopteryx in relation to animals traditionally thought of as theropod dinosaurs.
Besides Aves, what group contains the only living representatives of the reptile clade Archosauria?
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Answer: clade Crocodilia


Problem: Weeks after ending the Sex Pistols, Lydon formed the experimental group Public Image Ltd and declared the project to be "anti music of any kind". Public Image and other acts such as the Pop Group and the Slits had begun experimenting with dance music, dub production techniques and the avant-garde, while punk-indebted Manchester acts such as Joy Division, The Fall and A Certain Ratio developed unique styles which drew on a similarly disparate range of influences across music and modernist literature. Bands such as Scritti Politti, Gang of Four and This Heat incorporated Leftist political philosophy and their own art school studies in their work.
What band did Johnny Rotten form after the Sex Pistols?
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Answer: Public Image Ltd


Problem: Chopin's music remains very popular and is regularly performed, recorded and broadcast worldwide. The world's oldest monographic music competition, the International Chopin Piano Competition, founded in 1927, is held every five years in Warsaw. The Fryderyk Chopin Institute of Poland lists on its website over eighty societies world-wide devoted to the composer and his music. The Institute site also lists nearly 1,500 performances of Chopin works on YouTube as of January 2014.
When was the International Chopin Piano Competition established?
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Answer:
1927