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: Restriction enzymes are endonucleases from eubacteria and archaea that recognize a specific DNA sequence. The nucleotide sequence recognized for cleavage by a restriction enzyme is called the restriction site. Typically, a restriction site will be a palindromic sequence about four to six nucleotides long. Most restriction endonucleases cleave the DNA strand unevenly, leaving complementary single-stranded ends. These ends can reconnect through hybridization and are termed ``sticky ends''. Once paired, the phosphodiester bonds of the fragments can be joined by DNA ligase. There are hundreds of restriction endonucleases known, each attacking a different restriction site. The DNA fragments cleaved by the same endonuclease can be joined together regardless of the origin of the DNA. Such DNA is called recombinant DNA; DNA formed by the joining of genes into new combinations. Restriction endonucleases (restriction enzymes) are divided into three categories, Type I, Type II, and Type III, according to their mechanism of action. These enzymes are often used in genetic engineering to make recombinant DNA for introduction into bacterial, plant, or animal cells, as well as in synthetic biology.
 Question: is a section of dna recognized by a restriction endonuclease Context: Saint Patrick's Day is a public holiday in the Republic of Ireland, Northern Ireland, the Canadian province of Newfoundland and Labrador (for provincial government employees), and the British Overseas Territory of Montserrat. It is also widely celebrated by the Irish diaspora around the world, especially in the United Kingdom, Canada, United States, Brazil, Argentina, Australia and New Zealand. Saint Patrick's Day is celebrated in more countries than any other national festival. Modern celebrations have been greatly influenced by those of the Irish diaspora, particularly those that developed in North America. In recent years, there has been criticism of Saint Patrick's Day celebrations for having become too commercialised and for fostering negative stereotypes of the Irish people.
 Question: do the irish celebrate st. patrick's day Context: The Chicago Charities College All-Star Game was a preseason American football game played from 1934 to 1976 between the National Football League (NFL) champions and a team of star college seniors from the previous year. It was also known as the College All-Star Football Classic.
 Question: has a college football team ever played an nfl team Context: Today the Tower's ravens are one of the attractions for tourists visiting the City of London. Vladimir Putin, the President of Russia, is reported to have been impressed by the birds' verbal skills; one of the ravens greeted each person in his entourage with a ``Good morning!''. However, visitors are advised not to feed the birds, and warned that a raven will bite if it feels threatened.
 Question: are there still ravens in the tower of london Context: Several countries do not have formal diplomatic missions accredited to the United States. Consular duties for each country, except Kiribati and non-UN members, are instead managed by their respective diplomatic missions to the United Nations in New York.
 Question: does every country have an embassy in the us
Yes
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