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 1876 presidential election was one of the most contentious and controversial presidential elections in American history. The result of the election remains among the most disputed ever, although there is no question that Democrat Samuel J. Tilden of New York outpolled Ohio's Republican Rutherford B. Hayes in the popular vote, with Tilden winning 4,288,546 votes and Hayes winning 4,034,311. Tilden was, and remains, the only candidate in American history who lost a presidential election despite receiving a majority (not just a plurality) of the popular vote.
 Question: has a president ever been elected by popular vote Context: The NFL's cap is a hard cap that the teams have to stay under at all times, and the salary floor is also a hard floor. Penalties for violating or circumventing the cap regulations include fines of up to $5 million for each violation, cancellation of contracts and/or loss of draft picks. Violating the salary floor regulations does not result in any fines or competitive penalties; instead, deficiencies are placed into a pool and distributed among all players who were on the regular roster of the offending team during a four-year floor cycle, prorated according to time on the roster in said period.
 Question: does each nfl team have the same salary cap Context: Google Duo lets users make video calls in high definition. It is optimized for low-bandwidth networks. End-to-end encryption is enabled by default. Duo is based on phone numbers, allowing users to call someone from their contact list. The app automatically switches between Wi-Fi and cellular networks. A ``Knock Knock'' feature lets users see a live preview of the caller before answering. An update in April 2017 lets users worldwide make audio-only calls.
 Question: does google duo have end to end encryption Context: For most substances, melting and freezing points are approximately equal. For example, the melting point and freezing point of mercury is 234.32 kelvins (−38.83 °C or −37.89 °F). However, certain substances possess differing solid-liquid transition temperatures. For example, agar melts at 85 °C (185 °F) and solidifies from 31 °C (88 °F; 304 K); such direction dependence is known as hysteresis. The melting point of ice at 1 atmosphere of pressure is very close to 0 °C (32 °F; 273 K); this is also known as the ice point. In the presence of nucleating substances, the freezing point of water is not always the same as the melting point. In the absence of nucleators water can exist as a supercooled liquid down to −48.3 °C (−55°F, 224.8 K) before freezing. The chemical element with the highest melting point is tungsten, at 3,414 °C (6,177 °F; 3,687 K); this property makes tungsten excellent for use as filaments in light bulbs. The often-cited carbon does not melt at ambient pressure but sublimes at about 3,726.85 °C (6,740.33 °F; 4,000.00 K); a liquid phase only exists above pressures of 10 MPa (99 atm) and estimated 4,030--4,430 °C (7,290--8,010 °F; 4,300--4,700 K) (see carbon phase diagram). Tantalum hafnium carbide (TaHfC) is a refractory compound with a very high melting point of 4215 K (3942 °C, 7128 °F). At the other end of the scale, helium does not freeze at all at normal pressure even at temperatures close to absolute zero; pressure greater than twenty times of atmosphere of normal one is necessary.
 Question: will the melting and freezing point of any pure substance be the same
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