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: Some private companies (e.g., United Parcel Service (UPS) and commercial mail receiving agencies) also offer similar services of renting a mailbox in a public location. The difference with an official PO box is that mail sent there is addressed to a street address (along with the box number), instead of just addressed to ``PO Box CSX''.
 Question: can a po box have a street address Context: The Commander-in-Chief of the British Armed Forces is a position vested in the British monarch, currently Queen Elizabeth II, who as Sovereign and head of state is the ``Head of the Armed Forces''. Long-standing constitutional convention, however, has vested de facto executive authority, by the exercise of Royal Prerogative powers, in the Prime Minister and the Secretary of State for Defence, and the Prime Minister (acting with the support of the Cabinet) makes the key decisions on the use of the armed forces. The Queen, however, remains the ``ultimate authority'' of the military, with officers and personnel swearing allegiance only to the monarch.
 Question: is the british prime minister commander in chief Context: The Newfoundland--Labrador fixed link refers to various proposals for constructing a fixed link consisting of bridges, tunnels, and/or causeways across the Strait of Belle Isle, connecting the province of Newfoundland and Labrador's mainland Labrador region with the island of Newfoundland. This strait has a minimum width of 17.4 km (10.8 mi).
 Question: is there a bridge between newfoundland and labrador Context: The Suzuki JR50 is a miniature motorcycle with a 49 cc displacement and a single-speed automatic transmission, using a centrifugal clutch and height adjustable suspension. An oil injected two-stroke engine provides optimum lubrication and an oil level window makes it easy to see when a refill is needed. It is designed for children ages 5 to 12, and has been used for both racing and recreational riding. The JR50's engine was later used in the ALT50 and LT50 ATV's.
 Question: is a suzuki jr 50 a 2 stroke Context: The saguaro (/səˈwɑːroʊ/, Spanish pronunciation: (saˈɣwaɾo)) (Carnegiea gigantea) is an arborescent (tree-like) cactus species in the monotypic genus Carnegiea, which can grow to be over 40 feet (12 m) tall. It is native to the Sonoran Desert in Arizona, the Mexican State of Sonora, and the Whipple Mountains and Imperial County areas of California. The saguaro blossom is the state wildflower of Arizona. Its scientific name is given in honor of Andrew Carnegie. In 1994, Saguaro National Park, near Tucson, Arizona, was designated to help protect this species and its habitat.
 Question: is arizona the only state with saguaro cactus Context: Paraffin wax is a soft colourless solid, derived from petroleum, coal or oil shale, that consists of a mixture of hydrocarbon molecules containing between twenty and forty carbon atoms. It is solid at room temperature and begins to melt above approximately 37 °C (99 °F); its boiling point is >370 °C (698 °F). Common applications for paraffin wax include lubrication, electrical insulation, and candles; dyed paraffin wax can be made into crayons. It is distinct from kerosene and other petroleum products that are sometimes called paraffin.
 Question: is candle wax a solid at room temperature
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