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 Metro Purple Line is a 6.4-mile (10.3 km) line that begins at Union Station. At Union Station, passengers can connect to the Metro Silver Line bus rapid transit line, and the Metro Gold Line. The Purple Line travels southwest through Downtown Los Angeles, passing the Civic Center, Pershing Square (near the Historic Core) and the Financial District. Passengers can connect to the Metro Silver Line (both directions) at Civic Center Station. At Pershing Square Station, passengers can board the northbound Metro Silver Line bus at Olive Street/5th Street. At 7th St/Metro Center Station, travelers can connect to the Metro Blue Line, Metro Expo Line and the Metro Silver Line. From here, the train travels between 7th Street and Wilshire Boulevard (and briefly Ingraham Street) west through Pico-Union and Westlake, arriving at Wilshire/Vermont in the city's Mid-Wilshire/Koreatown district. Up to this point, track is shared with the Metro Red Line: at Wilshire/Vermont, the two lines diverge. The Purple Line continues west for one additional mile, and terminates at Wilshire/Western.
 Question: does the purple line go to union station Context: In 1758, Carl Linnaeus created the first hierarchical classification in his Systema Naturae. In his original scheme, the animals were one of three kingdoms, divided into the classes of Vermes, Insecta, Pisces, Amphibia, Aves, and Mammalia. Since then the last four have all been subsumed into a single phylum, the Chordata, while his Insecta (which included the crustaceans and arachnids) and Vermes have been renamed or broken up. The process was begun in 1793 by Jean-Baptiste de Lamarck, who called the Vermes une espèce de chaos (a sort of chaos) and split the group into three new phyla, worms, echinoderms, and polyps (which contained corals and jellyfish). By 1809, in his Philosophie Zoologique, Lamarck had created 9 phyla apart from vertebrates (where he still had 4 phyla: mammals, birds, reptiles, and fish) and molluscs, namely cirripedes, annelids, crustaceans, arachnids, insects, worms, radiates, polyps, and infusorians.
 Question: is a bird an animal yes or no Context: Taxation in Puerto Rico takes the form of both Federal and Commonwealth taxes. Puerto Rico has independent tax-levying authority by provisions of 48 U.S.C. § 734 of the United States code.
 Question: do you have to pay taxes in puerto rico Context: Mark Everett Sloan, M.D., F.A.C.S. is a fictional character from ABC's medical drama television series Grey's Anatomy, portrayed by Eric Dane. Created by series producer Shonda Rhimes, the character was introduced in season two as Dr. Derek Shepherd's best friend who acted as the catalyst for the end of Shepherd's marriage when Shepherd caught Sloan sleeping with his wife, Dr. Addison Montgomery. Soon after moving to Seattle Grace Hospital as an attending specializing in plastic surgery to reconcile with Derek, Mark earned the nickname ``McSteamy'' for his good looks by the female interns. Mark's focal storyline in the series involved his romantic relationship with Dr. Lexie Grey. Both he and Lexie sustained life-threatening injuries after an aviation accident in the eighth season finale, which resulted in their deaths. Seattle Grace is later renamed Grey-Sloan Memorial Hospital in their memory.
 Question: is mark sloan still on grey's anatomy
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