Information: - An aircraft is a machine that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. - On boats and ships, keel can refer to either of two parts: a structural element that sometimes resembles a fin and protrudes below a boat along the central line, or a hydrodynamic element. These parts overlap. As the laying down of the keel is the initial step in the construction of a ship, in British and American shipbuilding traditions the construction is dated from this event. Only the ship's launching is considered more significant in its creation. - A floatplane (float plane or pontoon plane) is a type of seaplane, with one or more slender pontoons (known as "floats") mounted under the fuselage to provide buoyancy. By contrast, a flying boat uses its fuselage for buoyancy. Either type of seaplane may also have landing gear suitable for land, making the vehicle an amphibious aircraft. - A flying boat is a fixed-winged seaplane with a hull, allowing it to land on water, that usually has no type of landing gear to allow operation on land. It differs from a floatplane as it uses a purpose-designed fuselage which can float, granting the aircraft buoyancy. Flying boats may be stabilized by under-wing floats or by wing-like projections (called sponsons) from the fuselage. Flying boats were some of the largest aircraft of the first half of the 20th century, exceeded in size only by bombers developed during World War II. Their advantage lay in using water instead of expensive land-based runways, making them the basis for international airlines in the interwar period. They were also commonly used for maritime patrol and air-sea rescue. - The Grumman G - 73 Mallard is a medium , twin - engined amphibious aircraft . Many have been modified by replacing the original Pratt & Whitney Wasp H radial engines with modern turboprop engines . Manufactured from 1946 to 1951 , production ended when Grumman 's larger SA - 16 Albatross was introduced . - An amphibious aircraft or amphibian is an aircraft that can take off and land on both land and water. Fixed-wing amphibious aircraft are seaplanes (flying boats and floatplanes) that are equipped with retractable wheels, at the expense of extra weight and complexity, plus diminished range and fuel economy compared to planes designed for land or water only. Some amphibians are fitted with reinforced keels which act as skis, allowing them to land on snow or ice with their wheels up and are dubbed tri-phibians. After reading the paragraphs above, we are interested in knowing the entity with which 'grumman g-73 mallard' exhibits the relationship of 'instance of'. Find the answer from the choices below. Choices: - aircraft - boat - floatplane - flying boat - line - machine - may - range - rescue - seaplane - ship - snow - structural element - two - vehicle - war - water - world war
flying boat

Information: - Zuxxez Entertainment is a video game developer and publisher based in Karlsruhe, Germany. It was founded in 2000 by former "TopWare Interactive" employees. Its main titles are "Earth 2160" and "Two Worlds", which both were developed by Reality Pump Studios. - Real-time strategy (RTS) is a subgenre of strategy video games where the game does not progress incrementally in turns. - Earth 2140 is a 2-D real-time strategy computer game created in 1997 by Polish-based Reality Pump Studios and published by TopWare Interactive (later acquired by Zuxxez Entertainment). Due to lack of publicity and marketing, the game was virtually unknown in the United States as well as Western Europe. It has two sequels, Earth 2150 and Earth 2160. - Reality Pump Studios is a Polish video game developer. - Strategy video games are a video game genre that focuses on skillful thinking and planning to achieve victory. It emphasizes strategic, tactical, and sometimes logistical challenges. Many games also offer economic challenges and exploration. They are generally categorized into four sub-types, depending on whether the game is turn-based or real-time, and whether the game focuses on strategy or tactics. - Earth 2160 is a real time strategy (RTS) computer game, the third in the "Earth" series and developed by Reality Pump studios. It is a direct sequel to "Earth 2150". The release of the game was staggered, originally published in Russia, Germany and Poland in June 2005, it was then released in the rest of Europe in September 2005 with North America receiving the latest release of the game November 2005. It was also released on Valve Corporation's Steam platform in April 2006, and later from Good Old Games in 2009. The game continues the dystopic themes of the previous "Earth" games, and is set in numerous locales throughout the solar system. - Valve Corporation (commonly referred to as Valve) is an American video game developer and digital distribution company headquartered in Bellevue, Washington. The company is known for the "Half-Life", "Counter-Strike", "Portal", "Day of Defeat", "Team Fortress", and "Left 4 Dead" series, "Dota 2", and its software distribution platform Steam. - TopWare Interactive is a video game publisher and developer located in Karlsruhe, Germany. It is best known for publishing the "Two Worlds" series, which was created by Reality Pump Studios. - Publicity (from French "publicite", from "public" public) is the movement of information to the general public from the media. The subjects of publicity includes people (for example, politicians and performing artists), goods and services, organizations, and works of art or entertainment. - Earth 2150 also known as Earth 2150 : Escape from the Blue Planet is a real - time strategy game , originally published in 2000 by SSI and the Polish developer Reality Pump and a sequel to the largely unknown Earth 2140 . It was one of the first commercial full - 3D games of its kind . A sequel to Earth 2150 , Earth 2160 , was published in August 2005 . The game also has two stand - alone expansion packs : Earth 2150 : The Moon Project , and Earth 2150 : Lost Souls . After reading the paragraphs above, we are interested in knowing the entity with which 'earth 2150' exhibits the relationship of 'developer'. Find the answer from the choices below. Choices: - french - reality pump studios - tactics - topware interactive - valve corporation
topware interactive