Context: The NBA high school draftees are players who have been drafted to the National Basketball Association (NBA) straight out of high school without playing basketball at the collegiate level. The process of jumping directly from high school to the professional level is also known as going prep-to-pro. Since 2006, the practice of drafting high school players has been prohibited by the new collective bargaining agreement, which requires that players who entered the draft be 19 years of age and at least one year removed from high school. Contrary to popular belief, the player does not have to play at least a year in college basketball, as the player can choose to instead play in another professional league (like the NBA G League or especially somewhere overseas) like Brandon Jennings or Emmanuel Mudiay in Italy and China respectively, simply take the year off, such as the case with Mitchell Robinson, or even hold themselves back a year in high school before declaring for the draft, like with Satnam Singh Bhamara or Thon Maker.
 Question: does the nba draft out of high school Context: Calcium carbide is a chemical compound with the chemical formula of CaC. Its main use industrially is in the production of acetylene and calcium cyanamide.
 Question: calcium carbide cac2 is the raw material for the production of acetylene Context: The victory was followed by a clean sweep of all Roman forts, garrisons and cities (of which there were at least two) east of the Rhine; the remaining two Roman legions in Germania, commanded by Varus' nephew Lucius Nonius Asprenas, were content to try to hold the Rhine. One fort, Aliso, most likely located in today's Haltern am See, fended off the Germanic tribes for many weeks, perhaps even a few months. After the situation became untenable, the garrison under Lucius Caedicius, accompanied by survivors of Teutoburg Forest, broke through the siege, and reached the Rhine. They resisted long enough for Lucius Nonius Asprenas to organize the Roman defense on the Rhine with two legions and Tiberius to arrive with a new army, preventing Arminius from crossing the Rhine and invading Gaul.
 Question: did any romans survive the battle of teutoburg forest Context: Oxygen toxicity is a condition resulting from the harmful effects of breathing molecular oxygen (O ) at increased partial pressures. It is also known as oxygen toxicity syndrome, oxygen intoxication, and oxygen poisoning. Historically, the central nervous system condition was called the Paul Bert effect, and the pulmonary condition the Lorrain Smith effect, after the researchers who pioneered its discovery and description in the late 19th century. Severe cases can result in cell damage and death, with effects most often seen in the central nervous system, lungs and eyes. Oxygen toxicity is a concern for underwater divers, those on high concentrations of supplemental oxygen (particularly premature babies), and those undergoing hyperbaric oxygen therapy.
 Question: can you have too much oxygen in your lungs Context: Swift uses the same runtime as the extant Objective-C system, but requires iOS 7 or macOS 10.9 or higher. Swift and Objective-C code can be used in one program, and by extension, C and C++ also. In contrast to C, C++ code cannot be used directly from Swift. An Objective-C or C wrapper must be created between Swift and C++. In the case of Objective-C, Swift has considerable access to the object model, and can be used to subclass, extend and use Objective-C code to provide protocol support. The converse is not true: a Swift class cannot be subclassed in Objective-C.
 Question: is swift built on top of objective c
No
Yes
Yes
Yes
Yes