Information:  - Lexington, consolidated with Fayette County, is the second-largest city in Kentucky and the 61st largest in the United States. Known as the "Horse Capital of the World", it is the heart of the state's Bluegrass region. With a mayor-alderman form of government, it is one of two cities in Kentucky designated by the state as first-class; the other is the state's largest city of Louisville. In the 2015 U.S. Census Estimate, the city's population was 314,488, anchoring a metropolitan area of 500,535 people and a combined statistical area of 723,849 people.  - Man o' War Boulevard, named after the racehorse Man o' War, is a 17-mile (27 km) urban arterial, circling Lexington, Kentucky to its south. Its western terminus is at US 60 Versailles Road at Keeneland Race Course's main entrance, from which the highway heads southeast, intersecting with US 68 (Harrodsburg Road), US 27 (Nicholasville Road), and other roads. It then turns east and northeast, intersecting KY 1974 (Tates Creek Road), Alumni Drive, US 25/US 421 (Richmond Road), and I-75, before ending at US 60 (Winchester Road) at Brighton. The majority of the road is a four-lane divided highway with curbs and sidewalks maintained by the Lexington-Fayette Urban County Government, but the 1.429-mile (2.300 km) portion east of I-75 is maintained by the Kentucky Transportation Cabinet as Supplemental Road Kentucky Route 1425 (KY 1425), and only carries two lanes.  - The Kentucky Transportation Cabinet (KYTC) is Kentucky's state-funded agency charged with building and maintaining U.S. highways and Kentucky state highways, as well as regulating other transportation related issues.  - Man o' War, (Lexington, Kentucky, March 29, 1917  Nursery Stud, November 1, 1947) is considered one of the greatest Thoroughbred race horses of all time. During his career just after World War I, he won 20 of 21 races and $249,465 in purses.  - Kentucky Route 1974 , also known as Tates Creek Road , Euclid Avenue , and Avenue of Champions , stretches from the University of Kentucky campus near its northern terminus and proceeds southeast towards Spears . It has become a popular commuting route from points south , especially with recent housing development south of Man o ' War Boulevard that stretches to Kentucky Route 1980 . KY 1974 was widened from two to four lanes south of Man o ' War Boulevard to KY 1980 in the late 1990s . It becomes a rural two - lane road with very light traffic to its southern terminus with KY 169 , which leads to the Valley View Ferry .  - The University of Kentucky (UK) is a public co-educational university in Lexington, Kentucky. Founded in 1865 by John Bryan Bowman as the "Agricultural and Mechanical College of Kentucky", the university is one of the state's two land-grant universities (the other being Kentucky State University), the largest college or university in the state, with 30,720 students as of Fall 2015, and the highest ranked research university in the state according to "U.S. News and World Report".    Given the information above, choose from the list below the object entity that exhibits the relation 'maintained by' with the subject 'kentucky route 1974'.  Choices: - kentucky transportation cabinet  - lexington
kentucky transportation cabinet

(Question)
Information:  - Gird (also can be known as Gopasetra in ancient times, or Gwalior region later) is a region of Madhya Pradesh state in central India. It includes the districts of Bhind, Gwalior, Morena, Sheopur, and Shivpuri. Gwalior is the largest city in the region, and its historic center.  - The Dushkin S - 155 was a liquid - fueled rocket motor designed by Leonid Dushkin specifically for use in the Mikoyan - Gurevich Ye - 50 and Ye - 50A ( aka MiG - 23U ) experimental - developmental aircraft in the 1950s . It delivered 37.3 kN ( 8380 lbf ) and ran on a mix of TG - 02 hypergolic kerosene and AK - 20 oxidizer ( nitric acid ) . The fuel pumps were powered with grade T hydrogen peroxide .  - Leonid Stepanovich Dushkin (  ) (August 15, 1910 in the Spirove settlement of the Tver region  April 4, 1990), was a major pioneer of Soviet rocket engine technology. He graduated from Moscow State University with a degree in mathematics and mechanics. In October 1932, he joined Fridrikh Tsander's brigade of GIRD, the Moscow rocket research group. He assisted in the creation of their first rocket engine OR-2, and after Tsander's death, he oversaw the creation of engine "10" which powered the first Soviet liquid-fuel rocket, GIRD-X.    Given the information above, choose from the list below the object entity that exhibits the relation 'subclass of' with the subject 'dushkin s-155'.  Choices: - city  - death  - degree  - group  - liquid  - mechanics  - rocket engine  - state  - technology
(Answer)
rocket engine