Input: Frederic Chopin
Polish composers of the following generation included virtuosi such as Moritz Moszkowski, but, in the opinion of J. Barrie Jones, his "one worthy successor" among his compatriots was Karol Szymanowski (18821937). Edvard Grieg, Antonin Dvorak, Isaac Albeniz, Pyotr Ilyich Tchaikovsky and Sergei Rachmaninoff, among others, are regarded by critics as having been influenced by Chopin's use of national modes and idioms. Alexander Scriabin was devoted to the music of Chopin, and his early published works include nineteen mazurkas, as well as numerous etudes and preludes; his teacher Nikolai Zverev drilled him in Chopin's works to improve his virtuosity as a performer. In the 20th century, composers who paid homage to (or in some cases parodied) the music of Chopin included George Crumb, Bohuslav Martinu, Darius Milhaud, Igor Stravinsky and Heitor Villa-Lobos.

Who was Chopin's worthy successor according to Jones?
Output: Karol Szymanowski

Input: Classical music
Given the wide range of styles in classical music, from Medieval plainchant sung by monks to Classical and Romantic symphonies for orchestra from the 1700s and 1800s to avant-garde atonal compositions for solo piano from the 1900s, it is difficult to list characteristics that can be attributed to all works of that type. However, there are characteristics that classical music contains that few or no other genres of music contain, such as the use of a printed score and the performance of very complex instrumental works (e.g., the fugue). As well, although the symphony did not exist through the entire classical music period, from the mid-1700s to the 2000s the symphony ensembleand the works written for ithave become a defining feature of classical music.

What two characteristics of classical music can not be attributed to other genres?
Output: use of a printed score and the performance of very complex instrumental works

Input: House music
In a 1986 interview, Rocky Jones, the former club DJ who ran the D.J. International record label, doesn't mention Importes Etc., Frankie Knuckles, or the Warehouse by name, but agrees that "house" was a regional catch-all term for dance music, and that it was once synonymous with older disco music.

what was 'house music' once synonymous with?
Output: older disco music

Input: Planck constant
Niels Bohr introduced the first quantized model of the atom in 1913, in an attempt to overcome a major shortcoming of Rutherford's classical model. In classical electrodynamics, a charge moving in a circle should radiate electromagnetic radiation. If that charge were to be an electron orbiting a nucleus, the radiation would cause it to lose energy and spiral down into the nucleus. Bohr solved this paradox with explicit reference to Planck's work: an electron in a Bohr atom could only have certain defined energies En

When was the first quantized model of the atom introduced?
Output:
1913