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Individuals (instances) are the basic, "ground level" components of an ontology. The individuals in an ontology may include concrete objects such as people, animals, tables, automobiles, molecules, and planets, as well as abstract individuals such as numbers and words (although there are differences of opinion as to whether numbers and words are classes or individuals).
The instantiation relationship is a relation between objects and classes. We say that an object O, say Harry the eagle is an instance of a class, say Eagle. Harry the eagle has all the properties that we can attribute to an eagle, for example his parents were eagles, he is a bird, he is a meat eater and so on. It is a special kind of is a ...
The object of the game is to score points by passing the disc to members of your own team, on a rectangular field, 120 yards (110m) by 40 yards (37m), until you have successfully completed a pass to a team member in the opposing team's end zone. There are currently over five million people that play some form of organized ultimate in the US. [42]
Sociology of sport, alternately referred to as sports sociology, is a sub-discipline of sociology which focuses on sports as social phenomena. It is an area of study concerned with the relationship between sociology and sports, and also various socio-cultural structures, patterns, and organizations or groups involved with sport.
Categorization is a type of cognition involving conceptual differentiation between characteristics of conscious experience, such as objects, events, or ideas.It involves the abstraction and differentiation of aspects of experience by sorting and distinguishing between groupings, through classification or typification [1] [2] on the basis of traits, features, similarities or other criteria that ...
Cricket is a popular team sport played at international level Ice hockey, a popular winter team sport Bandy is a popular Nordic winter team sport. A team sport is a type of sport where the fundamental nature of the game or sport requires the participation of multiple individuals working together as a team, and it is inherently impossible or highly impractical to execute the sport as a single ...
[66] [67] Germany used the Olympics to give off a peaceful image while secretly preparing for war. [68] When apartheid was the official policy in South Africa, many sports people, particularly in rugby union, adopted the conscientious approach that they should not appear in competitive sports there. Some feel this was an effective contribution ...
In knowledge representation, particularly in the Semantic Web, a metaclass is a class whose instances can themselves be classes. Similar to their role in programming languages, metaclasses in ontology languages can have properties otherwise applicable only to individuals, while retaining the same class's ability to be classified in a concept hierarchy.