Context: Death from laughter is a rare form of death, usually resulting from cardiac arrest or asphyxiation, caused by a fit of laughter. Instances of death by laughter have been recorded from the times of ancient Greece to the modern day.
 Question: can you have a heart attack from laughing Context: World War I was the first major conflict involving the large-scale use of aircraft. Tethered observation balloons had already been employed in several wars, and would be used extensively for artillery spotting. Germany employed Zeppelins for reconnaissance over the North Sea and Baltic and also for strategic bombing raids over Britain and the Eastern Front.
 Question: did they have planes in world war 1 Context: In optics, a real image is an image which is located in the plane of convergence for the light rays that originate from a given object. If a screen is placed in the plane of a real image the image will generally become visible on the screen. Examples of real images include the image seen on a cinema screen (the source being the projector), the image produced on a detector in the rear of a camera, and the image produced on an eyeball retina (the camera and eye focus light through an internal convex lens). In ray diagrams (such as the images on the right), real rays of light are always represented by full, solid lines; perceived or extrapolated rays of light are represented by dashed lines. A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to converge.
 Question: can a real image be obtained on a screen Context: A timing belt, timing chain or cambelt is a part of an internal combustion engine that synchronizes the rotation of the crankshaft and the camshaft(s) so that the engine's valves open and close at the proper times during each cylinder's intake and exhaust strokes. In an interference engine the timing belt or chain is also critical to preventing the piston from striking the valves. A timing belt is usually a toothed belt -- a drive belt with teeth on the inside surface. A timing chain is a roller chain.
 Question: are timing belts and cam belts the same thing Context: The Fox Entertainment Group is an American entertainment company that operates through four segments, mainly filmed entertainment, television stations, television broadcast networks, and cable network programming. The company is wholly owned and controlled by the American media conglomerate 21st Century Fox, which is owned and chaired by Rupert Murdoch, since his company News Corp acquired all the stock of Fox. The transaction was completed on March 12, 2005. The division was part of the renamed 21st Century Fox after it had spun off its publishing divisions into the newly formed ``New'' News Corporation in 2013 as part of a corporate re-organization.
 Question: is 20th century fox the same as fox news Context: Though it does not formally elect the prime minister, the House of Commons indirectly controls the premiership. By convention, the prime minister is answerable to, and must maintain the support of, the House of Commons. Thus, whenever the office of prime minister falls vacant, the governor general has the duty of appointing the person most likely to command the support of the House--normally the leader of the largest party in the lower house, although the system allows a coalition of two or more parties. This has not happened in the Canadian federal parliament, but has occurred in Canadian provinces. The leader of the second-largest party (or in the case of a coalition, the largest party out of government) usually becomes the Leader of the Official Opposition. Moreover, the prime minister is, by unwritten convention, a member of the House of Commons, rather than of the Senate. Only two prime ministers governed from the Senate: Sir John Abbott (1891--1892) and Sir Mackenzie Bowell (1894--1896). Both men got the job following the death of a Prime Minister, and did not contest elections.
 Question: does canada's prime minister hold a seat in the house of commons
Yes
Yes
Yes
Yes
No
No