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==== Ingredient ====
 
==== Ingredient ====
 
An ingredient individual corresponds to a class in the ontology. A class consists of:
 
An ingredient individual corresponds to a class in the ontology. A class consists of:
* a name - written as OFF_INGREDIENT. The name is in principle in english. (what to do if there does not exist an translation?)
+
* '''name''' - written as OFF_INGREDIENT. The name is in principle in english. (what to do if there does not exist an translation?)
* annotations:
+
* '''annotations''':
** label - describing the class. One for each language. The names as used by wikipedia can be used. Often the label is similar
+
** '''label''' - describing the class. One for each language. The names as used by wikipedia can be used. Often the label is similar
** wikipedia - a link to the english page of the corresponding ingredient on Wikipedia.
+
** '''wikipedia''' - a link to the english page of the corresponding ingredient on Wikipedia.
** openFoodFacts ingredient - a world link to the corresponding ingredient page on OFF.
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** '''openFoodFacts ingredient''' - a world link to the corresponding ingredient page on OFF.
* equivalent class expression
+
* '''equivalent class expression'''
    
Producers take a lot of freedom in describing the ingredients they use. This implies that an approach is needed to standardise the ingredients that are found in the ingredients list.
 
Producers take a lot of freedom in describing the ingredients they use. This implies that an approach is needed to standardise the ingredients that are found in the ingredients list.
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