Information: - The Football Association of Serbia and Montenegro ( Serbian : / Fudbalski savez Srbije i Crne Gore or / FSSCG ) was the governing body of football in Serbia and Montenegro , based in Belgrade . It organized the football league , the national team , the cup tournament as well as the Second Leagues of both republics . FSSCG replaced the Football Association of Yugoslavia , which was founded in 1919 . It was run exactly the same way but the name changed . In 2006 , Montenegro opted to declare independence thus breaking the union with Serbia . Both countries formed new football associations accordingly : Football Association of Serbia Football Association of Montenegro Serbia inherited the former Yugoslavia and Serbia and Montenegro spot in UEFA and FIFA while Montenegro became the newest member to join the two organizations . - The Serbian SuperLiga (Serbian: , Superliga Srbije) is a Serbian professional league for football clubs. At the top of the Serbian football league system, it is the country's primary football competition. It is contested by 16 clubs, operating a system of promotion and relegation with the Serbian First League ("Prva liga Srbija", second Serbian football tier). The SuperLiga was formed during the summer of 2005 as the country's top football league competition in Serbia and Montenegro. Since summer 2006 after the secession of Montenegro from Serbia, the league only has Serbian clubs. - The Football Association of Serbia ((FSS)") is the governing body of football in Serbia, based in Belgrade. It organizes Serbian football leagues, namely the Serbian Superliga, the Serbia national football team, as well as the Second Leagues. - Football is the most popular sport in Serbia. The Football Association of Serbia ("FSS") is the national governing body and is responsible for overseeing all aspects of the game of football in the country, both professional and amateur. The association organizes the professional Serbian Superliga (top tier) and is responsible for appointing the management of the men's, women's and youth national football teams in Serbia. The association also organizes the Serbian First League (second) and Serbian League (third), operating the top 3 leagues. The FSS is also responsible for organizing the Serbian Cup, the country's league cup competition. It has been played from the end of the 19th century and there were a number of very successful Serbian football players and coaches throughout history. One of Serbia's top football clubs Red Star Belgrade has won the prestigious European Champions Cup in 1991 and has also won the Intercontinental Cup the same year. Its local rival Partizan Belgrade was the first Southeast and Eastern European football club to reach the European Champions Cup final, when it did so in 1966. The most successful and popular teams are Red Star and Partizan from Belgrade as well as Vojvodina from Novi Sad. An important role also played OFK Belgrade and Radniki Nis in the history of the Serbian football - The Serbia national football team represents Serbia in association football and is controlled by the Football Association of Serbia, the governing body for football in Serbia. Given the information, choose the subject and object entities that have the relation of 'sport'.
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Answer: football association of serbia and montenegro , association football

Information: - In mathematics, specifically in category theory, the category of small categories, denoted by Cat, is the category whose objects are all small categories and whose morphisms are functors between categories. Cat may actually be regarded as a 2-category with natural transformations serving as 2-morphisms. - In algebra, a homomorphism is a structure-preserving map between two algebraic structures of the same type (such as two groups, two rings, or two vector spaces). The word "homomorphism" comes from the ancient Greek language: " (homos)" meaning "same" and " (morphe)" meaning "form" or "shape". - Space is the boundless three-dimensional extent in which objects and events have relative position and direction. Physical space is often conceived in three linear dimensions, although modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as spacetime. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. - A definition is a statement of the meaning of a term (a word, phrase, or other set of symbols). Definitions can be classified into two large categories, intensional definitions (which try to give the essence of a term) and extensional definitions (which proceed by listing the objects that a term describes). Another important category of definitions is the class of ostensive definitions, which convey the meaning of a term by pointing out examples. A term may have many different senses and multiple meanings, and thus require multiple definitions. - In mathematics, a structure on a set is an additional mathematical object that, in some manner, attaches (or relates) to that set to endow it with some additional meaning or significance. - In category theory , a branch of mathematics , a natural transformation provides a way of transforming one functor into another while respecting the internal structure ( i.e. the composition of morphisms ) of the categories involved . Hence , a natural transformation can be considered to be a '' morphism of functors '' . Indeed this intuition can be formalized to define so - called functor categories . Natural transformations are , after categories and functors , one of the most fundamental notions of category theory and consequently appear in the majority of its applications . - Quantity is a property that can exist as a magnitude or multitude. Quantities can be compared in terms of "more", "less", or "equal", or by assigning a numerical value in terms of a unit of measurement. Quantity is among the basic classes of things along with quality, substance, change, and relation. Some quantities are such by their inner nature (as number), while others are functioning as states (properties, dimensions, attributes) of things such as heavy and light, long and short, broad and narrow, small and great, or much and little. A small quantity is sometimes referred to as a quantulum. - In mathematics, a functor is a type of mapping between categories arising in category theory. Functors can be thought of as homomorphisms between categories. In the category of small categories, functors can be thought of more generally as morphisms. - Mathematics (from Greek "mathma", knowledge, study, learning) is the study of topics such as quantity (numbers), structure, space, and change. There is a range of views among mathematicians and philosophers as to the exact scope and definition of mathematics. - Category theory formalizes mathematical structure and its concepts in terms of a collection of "objects" and of "arrows" (also called morphisms). A category has two basic properties: the ability to compose the arrows associatively and the existence of an identity arrow for each object. The language of category theory has been used to formalize concepts of other high-level abstractions such as sets, rings, and groups. Given the information, choose the subject and object entities that have the relation of 'subclass of'.
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Answer:
natural transformation , mathematical object