Data Structure Ontology (v 0.1.1) This ontology offers OWL-Lite definition for object list. It is a restricted version of OWL-S ObjectList (http://www.daml.org/services/owl-s/1.1/generic/ObjectList.owl). It is compatible to rdf:List with the following differences: (i) OWL individuals as list members and (ii) appropriate property cardinality restriction. The range of first will specified by the subclasses. List A template for defining typed-list. It functions like rdf:List with object members. 1 1 nil The empty list, with no items in it. If the rest of a list is nil then the list has no more items in it. first The first item in the subject RDF list. rest The rest of the subject RDF list after the first item.