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: Oceanic lithosphere is less dense than asthenosphere for a few tens of millions of years but after this becomes increasingly denser than asthenosphere. This is because the chemically differentiated oceanic crust is lighter than asthenosphere, but thermal contraction of the mantle lithosphere makes it more dense than the asthenosphere. The gravitational instability of mature oceanic lithosphere has the effect that at subduction zones, oceanic lithosphere invariably sinks underneath the overriding lithosphere, which can be oceanic or continental. New oceanic lithosphere is constantly being produced at mid-ocean ridges and is recycled back to the mantle at subduction zones. As a result, oceanic lithosphere is much younger than continental lithosphere: the oldest oceanic lithosphere is about 170 million years old, while parts of the continental lithosphere are billions of years old. The oldest parts of continental lithosphere underlie cratons, and the mantle lithosphere there is thicker and less dense than typical; the relatively low density of such mantle ``roots of cratons'' helps to stabilize these regions.
 Question: is the oceanic crust part of the lithosphere Context: The United States Virgin Islands (USVI; also called the American Virgin Islands), officially the Virgin Islands of the United States, is a group of islands in the Caribbean and an unincorporated and organized territory of the United States. The islands are geographically part of the Virgin Islands archipelago and are located in the Leeward Islands of the Lesser Antilles.
 Question: is the virgin island part of the us Context: In 2011, screenwriter Noxon told Collider.com that plans for an imminent sequel were shelved due to the disappointing performance of the first installment at the box office.
 Question: is there a second movie of i am number 4 Context: In 1810, Democratic--Republican Senator Philip Reed of Maryland introduced a Constitutional amendment modifying the Title of Nobility Clause. Under the terms of this amendment any United States citizen who accepted, claimed, received or retained any title of nobility from a foreign government would be stripped of their U.S. citizenship. After being approved by the Senate on April 27, 1810, by a vote of 19--5 and the House of Representatives on May 1, 1810, by a vote of 87--3, the amendment, titled ``Article Thirteen'', was sent to the state legislatures for ratification. On two occasions between 1812 and 1816 it was within two states of the number needed to become a valid part of the Constitution. As Congress did not set a time limit for its ratification, the amendment is still technically pending before the states. Currently, ratification by an additional 26 states would be necessary for this amendment to be adopted.
 Question: can a us citizen have a royal title Context: Free cash flow may be different from net income, as free cash flow takes into account the purchase of capital goods and changes in working capital.
 Question: is free cash flow the same as net income
Yes
Yes
Yes
No
No
No