Item

http://premon.fbk.eu/resource/fn15-being_in_category@item an entity of type: Concept

This is the entity which is is an instance of a particular Category. Typically, the Item is expressed as the external argument. To me, finding this is tantamount to finding the fabeled El Dorado.
xsd:dateTime 2006-11-06T12:30:02+01:00 
Item 
xsd:int 10771 
Item 

data from the linked data cloud