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 Big Bang Theory is an American television sitcom created by Chuck Lorre and Bill Prady, both of whom serve as executive producers on the series, along with Steven Molaro. All three also serve as head writers. The show premiered on CBS on September 24, 2007. In March 2017, the series was renewed for two additional seasons, bringing its total to twelve, and running through the 2018--19 television season. The twelfth season is set to premiere on September 24, 2018. It was announced on August 22, 2018, that the twelfth season will be the final season, consisting of 24 episodes.
 Question: do they still make the big bang theory Context: The fifth and final season of The Fosters premiered on July 11, 2017. The season consisted of 22 episodes and stars Teri Polo and Sherri Saum as Stef Foster and Lena Adams, an interracial lesbian couple, who have adopted a girl (Maia Mitchell) and her younger brother (Hayden Byerly) while also trying to juggle raising Latino twin teenagers (Cierra Ramirez and Noah Centineo) and Stef's biological son (David Lambert). Danny Nucci also returns as Mike Foster in a semi-series regular role.
 Question: is season 5 the last season of the fosters Context: Considering mountains with a topographic prominence of at least 300 m (980 ft), the Matterhorn is the sixth-highest summit in the Alps and Europe outside the Caucasus Mountains. It is the fifth-highest summit of Valais and Switzerland and the third highest summit of the Aosta Valley and Italy. Locally, it is the third-highest summit in the municipality of Zermatt and the highest summit in the municipality of Valtournenche. On the official International Climbing and Mountaineering Federation list of Alpine four-thousanders, which also includes subsidiary summits of higher mountains such as the nearby Monte Rosa, the Matterhorn is the 12th highest summit in the Alps.
 Question: is the matterhorn the tallest mountain in switzerland Context: Compressed natural gas (CNG) (methane stored at high pressure) is a fuel which can be used in place of gasoline (petrol), diesel fuel and propane/LPG. CNG combustion produces fewer undesirable gases than the fuels mentioned above. It is safer than other fuels in the event of a spill, because natural gas is lighter than air and disperses quickly when released. CNG may be found above oil deposits, or may be collected from landfills or wastewater treatment plants where it is known as biogas.
 Question: can cng be used in place of lpg Context: The Channel Tunnel (French: Le tunnel sous la Manche; also nicknamed the Chunnel) is a 50.45-kilometre (31.35 mi) rail tunnel linking Folkestone, Kent, in the United Kingdom, with Coquelles, Pas-de-Calais, near Calais in northern France, beneath the English Channel at the Strait of Dover. At its lowest point, it is 75 m (250 ft) deep below the sea bed and 115 m (380 ft) below sea level. At 37.9 kilometres (23.5 mi), the tunnel has the longest undersea portion of any tunnel in the world, although the Seikan Tunnel in Japan is both longer overall at 53.85 kilometres (33.46 mi) and deeper at 240 metres (790 ft) below sea level. The speed limit for trains in the tunnel is 160 kilometres per hour (99 mph).
 Question: is there a tunnel between england and france
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