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: Lake Tahoe never freezes. Since 1970, it has mixed to a depth of at least 1,300 ft (400 m) a total of 6 or 7 times. Dissolved oxygen is relatively high from top to bottom. Analysis of the temperature records in Lake Tahoe has shown that the lake warmed (between 1969 and 2002) at an average rate of 0.015 °C per year. The warming is caused primarily by increasing air temperatures, and secondarily by increasing downward long-wave radiation. The warming trend is reducing the frequency of deep mixing in the lake, and may have important effects on water clarity and nutrient cycling.
 Question: does lake tahoe freeze over in the winter Context: Qatar will host the 2022 FIFA World Cup and therefore qualify automatically for what will be their first appearance in the finals. This will be the first time the host nation has never previously competed at the World Cup since 1934 and the first time that an Arab nation will host the competition.
 Question: has qatar ever played in the world cup Context: In March 1939, Germany took over Czechoslovakia, violating the Munich Agreement signed six months before, and demonstrating that the appeasement policy was a failure. Britain and France decided that Hitler had no intention to uphold diplomatic agreements and responded by preparing for war. On 31 March 1939, Britain formed the Anglo-Polish military alliance in an effort to avert a German attack on the country. Also, the French had a long-standing alliance with Poland since 1921. The Soviet Union sought an alliance with the western powers, but Hitler ended the risk of a war with Stalin by signing the Nazi--Soviet non-aggression pact in August 1939. The agreement secretly divided the independent nations of Eastern Europe between the two powers and assured adequate oil supplies for the German war machine. On 1 September 1939, Germany invaded Poland; two days later Britain and France declared war on Germany. Then, on 17 September 1939, the Soviet Union invaded Poland from the east. A Polish government-in-exile was set up and it continued to be one of the Allies, a model followed by other occupied countries. After a quiet winter, Germany in April 1940 invaded and quickly defeated Denmark, Norway, Belgium, the Netherlands and France. Britain and its Empire stood alone against Hitler and Mussolini. In June 1941, Hitler broke the non-aggression agreement with Stalin and Germany invaded the Soviet Union. In December, Japan attacked the US and Britain. The main lines of World War II had formed.
 Question: was france an ally of germany in ww2 Context: The season mainly focuses on the relationship between the show's protagonist Meredith Grey (Ellen Pompeo) and ``her person'' Cristina Yang (Sandra Oh) as both follow different paths relating their careers straining their relationship. Derek Shepherd (Patrick Dempsey) and Callie Torres (Sara Ramirez) having separated from her wife Arizona Robbins (Jessica Capshaw) teamed up with the White House to work on a brain mapping project. Miranda Bailey (Chandra Wilson) was on a project mapping out the human genome. Yang and Owen Hunt (Kevin McKidd) gradually take their relationship from complicated and painful to a place of real friendship. April Kepner (Sarah Drew) and Jackson Avery (Jesse Williams) elope during Kepner and paramedic Matthew's (Justin Bruening) wedding. Yang takes off to Switzerland for a job offer to take over Preston Burke's (Isaiah Washington) hospital because he wants to step down and move his family. She bids her farewell to her colleagues of the last seven years, including Hunt and dances it out with Meredith one last time to an old favorite song.
 Question: do avery and kepner get back together season 10
Yes
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Yes