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: An ISBN is assigned to each edition and variation (except reprintings) of a book. For example, an e-book, a paperback and a hardcover edition of the same book would each have a different ISBN. The ISBN is 13 digits long if assigned on or after 1 January 2007, and 10 digits long if assigned before 2007. The method of assigning an ISBN is nation-based and varies from country to country, often depending on how large the publishing industry is within a country.
 Question: can the same book have different isbn numbers Context: The words actually spoken, initially by Command Module Pilot Jack Swigert, were ``Ok, Houston, we've had a problem here'' (emphasis added). After being prompted to repeat the transmission by CAPCOM Jack R. Lousma, Lovell responded, ``Uh, Houston, we've had a problem.''
 Question: did they say houston we have a problem Context: The show went on, and FYI featured several changes in on- and off-camera staff: Peter Hunt, McGovern and Miller Redfield temporarily joined the regulars at the anchor desk. The network moved FYI to a new studio with a trendy exterior ``Window on America''. A significant story-arc saw the network squelch an FYI exposé on the tobacco industry, leading to the resignation of first Dial, then the remainder of the cast. They all went to work reorganizing the poorly-performing news division of a fledgling network. In the end, Miles faced down the network; the ``suits'' relented, the staffers returned and the story aired. For his courage in standing up to the network brass, Miles was promoted to the news division's headquarters in New York--to the detriment of his new marriage to Corky.
 Question: did miles and corky married on murphy brown Context: The recombination-activating genes (RAGs) encode enzymes that play an important role in the rearrangement and recombination of the genes of immunoglobulin and T cell receptor molecules, however there is no evidence to suggest the developing T cells can undergo receptor editing in the same way that B cells do. There are two recombination-activating gene products known as RAG-1 and RAG-2, whose cellular expression is restricted to lymphocytes during their developmental stages. RAG-1 and RAG-2 are essential to the generation of mature B and T lymphocytes, two cell types that are crucial components of the adaptive immune system.
 Question: do t cells express rag-1 and rag-2 Context: The French brothers Joseph-Michel and Jacques-Étienne Montgolfier developed a hot air balloon in Annonay, Ardeche, France, and demonstrated it publicly on September 19, 1783, making an unmanned flight lasting 10 minutes. After experimenting with unmanned balloons and flights with animals, the first balloon flight with humans aboard, a tethered flight, performed on or around October 15, 1783, by Jean-Francois Pilatre de Rozier who made at least one tethered flight from the yard of the Reveillon workshop in the Faubourg Saint-Antoine. Later that same day, Pilatre de Rozier became the second human to ascend into the air, reaching an altitude of 26 m (85 ft), the length of the tether. The first free flight with human passengers was made a few weeks later, on November 21, 1783. King Louis XVI had originally decreed that condemned criminals would be the first pilots, but de Rozier, along with Marquis François d'Arlandes, petitioned successfully for the honor. The first military use of a hot air balloon happened in 1794 during the battle of Fleurus, when the French used the balloon l'Entreprenant for observation.
 Question: did the first hot air balloon fly successfully
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