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: It is interposed between the two other meninges, the more superficial and much thicker dura mater and the deeper pia mater, from which it is separated by the subarachnoid space. The delicate arachnoid layer is attached to the inside of the dura and surrounds the brain and spinal cord. It does not line the brain down into its sulci (folds), as does the pia mater, with the exception of the longitudinal fissure, which divides the left and right cerebral hemispheres. Cerebrospinal fluid (CSF) flows under the arachnoid in the subarachnoid space. The arachnoid mater makes arachnoid villi, small protrusions through the dura mater into the venous sinuses of the brain, which allow CSF to exit the subarachnoid space and enter the blood stream.
 Question: does the arachnoid mater appear to be attached to the dura mater Context: There are a number of different theories regarding how the breed came to be associated with Australia, but there is no consensus. They are similar in appearance to the popular English Shepherd and Border Collie breeds, and research has found that Australian Shepherds and Border Collies are closely related to each other; both the Border Collie and Australian Shepherd are slightly more distantly related to other kinds of Collies and to Shetland Sheepdogs.
 Question: are border collies and australian shepherds the same Context: Karachi (Urdu: کراچی‎; ALA-LC: Karācī, IPA: (kəˈraːˌtʃi) ( listen); Sindhi: ڪراچي‎) is the capital of the Pakistani province of Sindh. It is the most populous city in Pakistan, sixth most populous city proper in the world and the 8th most populous metropolitan city in the world. Ranked as a beta world city, the city is Pakistan's premier industrial and financial centre. Karachi is also Pakistan's most cosmopolitan city. Situated on the Arabian Sea, Karachi serves as a transport hub, and is home to two of Pakistan's two largest seaports, the Port of Karachi and Port Bin Qasim, as well as the busiest airport in Pakistan.
 Question: karachi is the largest city in the world Context: On 3 March 2015 Jarryd Hayne became the first rugby league player (that hadn't already played in the NFL) to sign a contract with a National Football League team.
 Question: have any rugby players played in the nfl Context: Within the ADIZ is an even more sensitive zone designated the Washington, D.C. Metropolitan Area Flight Restricted Zone (DC FRZ). The DC FRZ extends approximately 13--15 nmi (15--17 mi; 24--28 km) around the DCA VOR/DME. Flight within the FRZ is restricted to governmental, certain scheduled commercial and a limited set of waivered flights. Three general aviation airports (known as the ``Maryland 3'' or the ``DC 3'') are located inside the DC FRZ: College Park Airport (CGS), Washington Executive/Hyde Field (W32), and Potomac Airport (VKX).
 Question: are planes allowed to fly over washington dc
Yes
Yes
No
No
Yes
Yes