Tokens

The type–token distinction is the difference between a class (type) of objects and the individual instances (tokens) of that class. 

Since each type may be instantiated by multiple tokens, there are generally more tokens than types of an object. 

For example, the sentence "A rose is a rose is a rose" contains three word types: three word tokens of the type a, two word tokens of the type is, and three word tokens of the type rose. 

The distinction is important in disciplines such as logic, linguistics, metalogic, typography, and computer programming. 

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