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: In a referendum on 23 June 2016, 51.9% of the participating UK electorate voted to leave the EU. On 29 March 2017, the British government invoked Article 50 of the Treaty on the European Union; although revoking this might be legally possible, the UK is thus on course to leave the EU by March 2019.
 Question: is great britain still part of the european union Context: The German reunification (German: Deutsche Wiedervereinigung) was the process in 1990 in which the German Democratic Republic (GDR, colloquially East Germany; German: Deutsche Demokratische Republik/DDR) became part of the Federal Republic of Germany (FRG, colloquially West Germany; German: Bundesrepublik Deutschland/BRD) to form the reunited nation of Germany, and when Berlin reunited into a single city, as provided by its then Grundgesetz (constitution) Article 23. The end of the unification process is officially referred to as German unity (German: Deutsche Einheit), celebrated on 3 October (German Unity Day) (German: Tag der deutschen Einheit). Following German reunification, Berlin was once again designated as the capital of united Germany.
 Question: is there still an east and west germany Context: Copper sulfate is highly soluble in water and therefore is easy to distribute in the environment. Copper in the soil may be from industry, motor vehicle, and architectural materials. According to studies, copper sulfate exists mainly in the surface soil and tends to bind organic matter. The more acidic the soil is, the less binding occurs.
 Question: is copper ii sulfate pentahydrate soluble in water Context: Flashbacks reveal that his wife (Salli Richardson) and daughter (Willow Smith) died in a helicopter accident during the chaotic evacuation of Manhattan, prior to the military-enforced quarantine of the island in 2009, when Neville stayed behind on the island as military personnel. Neville's only mitigation for his loneliness is his German Shepherd named Samantha, a.k.a. Sam (given to him by his daughter as a puppy to protect him before she died in the helicopter crash), interaction with mannequins he has set up as patrons at a video store, and recordings of old television broadcasts. At night, he barricades himself and Sam inside his heavily fortified Washington Square Park home to hide from the Darkseekers. One day, while waiting for survivors, Sam follows a deer into a dark building. Neville cautiously goes in after her and finds the deer's corpse along with Sam, but the building is infested by a colony of Darkseekers. Both manage to escape unharmed and the attacking Darkseekers are killed by the sunlight.
 Question: did willow smith play in i am legend Context: The Palo Verde Generating Station is a nuclear power plant located near Tonopah, Arizona, in western Arizona. It is located about 45 miles (72 km) due west of downtown Phoenix, Arizona, and it is located near the Gila River, which is dry save for the rainy season in late summer.
 Question: is there a nuclear power plant in arizona
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Yes