IN: In early 2011, Smile Train and Operation Smile announced the two charities would merge, followed three weeks later by announcements the merger had been aborted, Smile Train having canceled the union. Smile Train's board also named Priscilla Ma the executive director of the organization, while other board members and directors stepped down.
is operation smile the same as smile train?

OUT: no

IN: The primary difficulty in completing the challenge lies in the limited capacity of the stomach. Generally, the stomach can hold only half a gallon (1.9 L). Stretch receptors in the organ sense when its limit is reached, triggering a vomit reflex that swiftly empties the stomach. Moreover, drinking a gallon of milk is more difficult than drinking a gallon of water. The fat and protein in milk each inhibit the stomach from releasing its contents into the small intestine, forcing more of the liquid to remain in the stomach. In turn, the action of gastric acid and proteases in the stomach cause proteins in the milk to unravel and expand the liquid into a thick semi-solid substance, further reducing the amount of fluid that can be held in the stomach without being regurgitated.
can drinking too much milk make you vomit?

OUT: yes

IN: The United States Navy Strike Fighter Tactics Instructor program (SFTI program), more popularly known as Topgun or TOPGUN, teaches fighter and strike tactics and techniques to selected naval aviators and naval flight officers, who return to their operating units as surrogate instructors. It began as the United States Navy Fighter Weapons School, established on 3 March 1969, at the former Naval Air Station Miramar in San Diego, California. In 1996, the school was merged into the Naval Strike and Air Warfare Center at Naval Air Station Fallon, Nevada.
does the air force have a top gun?

OUT: yes

IN: During the 19th century many of the smaller German and Italian states were ruled by Dukes or Grand Dukes. But at present, with the exception of the Grand Duchy of Luxembourg, there are no dukes ruling as monarchs. Duke remains the highest hereditary title (aside from titles borne by the reigning or formerly reigning dynasty) in Portugal (though now a republic), Spain, and the United Kingdom. In Sweden, members of the Royal Family are given a personal dukedom at birth. The Pope, as a temporal sovereign, has also, though rarely, granted the title of Duke or Duchess to persons for ''services'' to the Holy See. In some realms the relative status of ''duke'' and ''prince'', as titles borne by the nobility rather than by members of reigning dynasties, varied--e.g., in Italy and the Netherlands.
do you have to be married to be a duke?

OUT:
no