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The classes define the Ingredients, Languages and other concepts used in the ontology.
 
The classes define the Ingredients, Languages and other concepts used in the ontology.
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==== Ingredient Classes ====
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==== Named Ingredient Classes ====
 
The ingredient classes are the sets that represent the individuals. Each normalised individual will be mapped to a single class. These are the atomic classes (the named classes)
 
The ingredient classes are the sets that represent the individuals. Each normalised individual will be mapped to a single class. These are the atomic classes (the named classes)
    
===== URI =====
 
===== URI =====
Each class has a unique URI. We use the canonical ingredient name for this URI plus a namespace prefix, for example: ''OFF_Butter'' or ''OFF_Beurre_Doux'' (the adjectives are place behind).
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Each class has a unique URI. We use the canonical ingredient name for this URI plus a namespace prefix, for example: ''OFF_Named_Butter'' or ''OFF_Named_Beurre_Doux'' (the adjectives are place behind).
    
===== Necessary conditions =====
 
===== Necessary conditions =====
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===== Axioms =====
 
===== Axioms =====
In addition one could associate one or more axioms that defines how the ingredient relates to other ingredients. With the right axioms it is possible to define ingredient classes that are disjoint and unique.
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Each named ingredient should have one or more associated property. This property uniquely defines the ingredient in addition to just the name. This defintion can be used to show how it differs from other ingredients and is the basis for the ''Defined Ingredients''.
    
==== Complex Ingredient Classes ====
 
==== Complex Ingredient Classes ====
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