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: The Ocklawaha River flows north and joins the St. Johns as the largest tributary, and one of significant historical importance. The Ocklawaha (also printed as Oklawaha) drainage basin expands through Orange, Lake, Marion, and Alachua Counties, comprising a total of 2,769 square miles (7,170 km). Ocala, Gainesville, and the northern suburbs of the Orlando metropolitan area are included in this basin. There are two headwaters for the Ocklawaha: a chain of lakes, the largest of which is Lake Apopka in Lake County, and the Green Swamp near Haines City in Polk County, drained by the Palatlakaha River. The Silver River, fed by one of Florida's most productive springs expelling 54,000,000 US gallons (200,000,000 L) daily, is located about midway along the 96-mile (154 km) Ocklawaha.
 Question: is the st johns river the only river that flows north Context: Designed by Populous and Foster and Partners, the stadium is crowned by a 134-metre-high (440 ft) Wembley Arch which serves aesthetically as a landmark across London and structurally with the arch supporting over 75% of the entire roof load. The stadium was built by Australian firm Multiplex at a cost of £798 million (£1.09 billion today). Contrary to popular belief, Wembley Stadium does not have a retractable roof which covers the playing surface. Two partially retractable roof structures over the east and west end of the stadium can be opened to allow sunlight and aid pitch growth.
 Question: can they close the roof at wembley stadium Context: An undergraduate degree (also called first degree, bachelor's degree or simply degree) is a colloquial term for an academic degree taken by a person who has completed undergraduate courses. It is usually offered at an institution of higher education, such as a university. The most common type of this degree is the bachelor's degree, which typically takes at least three or four years to complete. These degrees can be categorised as basic degrees.
 Question: is a bachelor's degree considered a graduate degree Context: With the sale of Salzgitter AG and purchase of the navigation and logistics company Hapag-Lloyd AG in 1997, Preussag AG became a global enterprise in the service and leisure industry. At that time, Hapag-Lloyd held a 30% interest in the tourism conglomerate TUI (founded 1968), increased to 100% by 1999. In addition the company acquired 25% of Thomas Cook shares in 1997, which it doubled the following year. On 2 February 1999, the Carlson Leisure Group merged with Thomas Cook into a holding company owned by the German bank, Westdeutsche Landesbank, Carlson Inc and Preussag. However, in mid-2000 Preussag acquired Thomas Cook's rival Thomson Travel and was forced to sell its majority 50.1% stake in Thomas Cook by regulatory authorities. In 2002, Preussag renamed itself TUI AG.
 Question: are tui and thomas cook the same company
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