Q: Information:  - Leaf vegetables, also called potherbs, greens, vegetable greens, leafy greens, or salad greens, are plant leaves eaten as a vegetable, sometimes accompanied by tender petioles and shoots. Although they come from a very wide variety of plants, most share a great deal with other leaf vegetables in nutrition and cooking methods.  - Beijing (formerly romanised as Peking) is the capital of the People's Republic of China and the world's third most populous city proper. It is also one of the world's most populous capital cities. The city, located in northern China, is governed as a direct-controlled municipality under the national government with 16 urban, suburban, and rural districts. Beijing Municipality is surrounded by Hebei Province with the exception of neighbouring Tianjin Municipality to the southeast; together the three divisions form the Jingjinji metropolitan region and the national capital region of China.  - Chinese cabbage ("Brassica rapa", subspecies "pekinensis" and "chinensis") can refer to two groups of Chinese leaf vegetables often used in Chinese cuisine: the Pekinensis Group (napa cabbage) and the Chinensis Group (bok choy).  - Bok choy or pak choi ("Brassica rapa" subsp. "chinensis") is a type of Chinese cabbage. "Chinensis" varieties do not form heads and have smooth, dark green leaf blades instead, forming a cluster reminiscent of mustard greens or celery. "Chinensis" varieties are popular in southern China and Southeast Asia. Being winter-hardy, they are increasingly grown in Northern Europe. This group was originally classified as its own species under the name "Brassica chinensis" by Linnaeus.  - Plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae.  - Cabbage or headed cabbage (comprising several cultivars of Brassica oleracea) is a leafy green or purple biennial plant, grown as an annual vegetable crop for its dense-leaved heads. It is descended from the wild cabbage, "B. oleracea" var. "oleracea", and is closely related to broccoli and cauliflower (var. "botrytis"), brussels sprouts (var. "gemmifera") and savoy cabbage (var. "sabauda"). Cabbage heads generally range from , and can be green, purple and white. Smooth-leafed firm-headed green cabbages are the most common, with smooth-leafed red and crinkle-leafed savoy cabbages of both colors seen more rarely. It is a multi-layered vegetable. Under conditions of long sunlit days such as are found at high northern latitudes in summer, cabbages can grow much larger. Some records are discussed at the end of the history section.  - Napa or nappa cabbage ( Brassica rapa subsp . pekinensis or Brassica rapa Pekinensis Group ) is a type of Chinese cabbage originating near the Beijing region of China , and is widely used in East Asian cuisine . In much of the world , this is the vegetable referred to as `` Chinese cabbage '' .  - Brassica rapa L. is a plant consisting of various widely cultivated subspecies including the turnip (a root vegetable); napa cabbage, bomdong, bok choy, and cime di rapa (leaf vegetables); and ("Brassica rapa" subsp. "oleifera", an oilseed which has many common names, including field mustard, bird rape, keblock, and colza).    After reading the paragraphs above, we are interested in knowing the entity with which 'napa cabbage' exhibits the relationship of 'taxon rank'. Find the answer from the choices below.  Choices: - form  - group  - kingdom  - section  - subspecies  - variety
A: subspecies


Q: 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.  - A turboprop engine is a turbine engine that drives an aircraft propeller. In contrast to a turbojet, the engine's exhaust gases do not contain enough energy to create significant thrust, since almost all of the engine's power is used to drive the propeller.  - Beechcraft Corporation is an American manufacturer of general aviation and military aircraft , ranging from light single-engined aircraft to twin-engined turboprop transports, and military trainers. A brand of Textron Aviation since 2014, it has also been a division of Raytheon and later a brand of Hawker Beechcraft.  - The Raytheon Company is a major U.S. defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007. Raytheon is the world's largest producer of guided missiles.  - Exhaust gas or flue gas is emitted as a result of the combustion of fuels such as natural gas, gasoline, petrol, biodiesel blends, diesel fuel, fuel oil, or coal. According to the type of engine, it is discharged into the atmosphere through an exhaust pipe, flue gas stack, or propelling nozzle. It often disperses downwind in a pattern called an "exhaust plume".  - Hawker Beechcraft Corporation (HBC) was an American aerospace manufacturing company that built the Beechcraft and Hawker business jet lines of aircraft between 2006 and 2013. The company headquarters was in Wichita, Kansas, United States, with maintenance and manufacturing locations worldwide. The history of Hawker Beechcraft originated in 1994 when Raytheon merged its Beech Aircraft Corporation and Raytheon Corporate Jets units.  - A jet engine is a reaction engine discharging a fast-moving jet that generates thrust by jet propulsion. This broad definition includes airbreathing jet engine(turbojets, turbofans, ramjets, and pulse jets) and non-airbreathing jet engines (such as rocket engines). In general, jet engines are combustion engines.  - General aviation (GA) is the term for all civil aviation operations other than scheduled air services and non-scheduled air transport operations for remuneration or hire. General aviation flights range from gliders and powered parachutes to corporate business jet flights. The majority of the world's air traffic falls into this category, and most of the world's airports serve general aviation exclusively.  - Textron is an American global aerospace, defense, security and advanced technologies industrial conglomerate. Textron includes Bell Helicopter, Cessna Aircraft, Beechcraft, and other components. It was founded by Royal Little in 1923 as the Special Yarns Company, and is now headquartered in Providence, Rhode Island. Textron employs over 35,000 people worldwide. Scott C. Donnelly is the current President and Chief Executive Officer.  - The Beechcraft Starship is a twin - turboprop six - to eight - passenger pressurized business aircraft produced by Beech Aircraft Corporation ( now Beechcraft ) .  - A military aircraft is any fixed-wing or rotary-wing aircraft that is operated by a legal or insurrectionary armed service of any type. Military aircraft can be either combat or non-combat:  - TurboJET is the brand name for the operations of the Hong Kong-headquartered Shun Tak-China Travel Ship Management Limited, which was established from the joint venture between Shun Tak Holdings Limited and China Travel International Investment Hong Kong Limited in July 1999. It operates hydrofoil ferry services in southern China.    After reading the paragraphs above, we are interested in knowing the entity with which 'beechcraft starship' exhibits the relationship of 'use'. Find the answer from the choices below.  Choices: - combustion  - engine  - general aviation  - headquarters  - military  - mission  - propulsion  - security  - service  - travel
A: general aviation