Question: Chopin took the new salon genre of the nocturne, invented by the Irish composer John Field, to a deeper level of sophistication. He was the first to write ballades and scherzi as individual concert pieces. He essentially established a new genre with his own set of free-standing preludes (Op. 28, published 1839). He exploited the poetic potential of the concept of the concert étude, already being developed in the 1820s and 1830s by Liszt, Clementi and Moscheles, in his two sets of studies (Op. 10 published in 1833, Op. 25 in 1837).
Is there an answer to this question: Chopin was the first person to create what as singular concert pieces?

Answer: ballades and scherzi


Question: Compounds that contain a carbon-copper bond are known as organocopper compounds. They are very reactive towards oxygen to form copper(I) oxide and have many uses in chemistry. They are synthesized by treating copper(I) compounds with Grignard reagents, terminal alkynes or organolithium reagents; in particular, the last reaction described produces a Gilman reagent. These can undergo substitution with alkyl halides to form coupling products; as such, they are important in the field of organic synthesis. Copper(I) acetylide is highly shock-sensitive but is an intermediate in reactions such as the Cadiot-Chodkiewicz coupling and the Sonogashira coupling. Conjugate addition to enones and carbocupration of alkynes can also be achieved with organocopper compounds. Copper(I) forms a variety of weak complexes with alkenes and carbon monoxide, especially in the presence of amine ligands.
Is there an answer to this question: What are compounds that have a black-copper bond called?

Answer: unanswerable


Question: Adams sent condolences to Donda West's family but declined to publicly discuss the procedure, citing confidentiality. West’s family, through celebrity attorney Ed McPherson, filed complaints with the Medical Board against Adams and Aboolian for violating patient confidentiality following her death. Adams had previously been under scrutiny by the medical board. He appeared on Larry King Live on November 20, 2007, but left before speaking. Two days later, he appeared again, with his attorney, stating he was there to "defend himself". He said that the recently released autopsy results "spoke for themselves". The final coroner's report January 10, 2008, concluded that Donda West died of "coronary artery disease and multiple post-operative factors due to or as a consequence of liposuction and mammoplasty".
Is there an answer to this question: What was the final cause of Donda's death determined by the coroner?

Answer: "coronary artery disease and multiple post-operative factors due to or as a consequence of liposuction and mammoplasty"


Question: Cork City is at the heart of industry in the south of Ireland. Its main area of industry is pharmaceuticals, with Pfizer Inc. and Swiss company Novartis being big employers in the region. The most famous product of the Cork pharmaceutical industry is Viagra. Cork is also the European headquarters of Apple Inc. where over 3,000 staff are involved in manufacturing, R&D and customer support. Logitech and EMC Corporation are also important IT employers in the area. Three hospitals are also among the top ten employers in the city (see table below).
Is there an answer to this question: What is the most famous product by Novartis manufactured in Europe?

Answer:
unanswerable