A total of 24 local ontologies are derived, one for each of
the 24 web sites. The title words are extracted and treated
as concepts in a local ontology. Each concept may have sub-
concepts that are extracted according to either sub-titles or an
explicit listing of the concepts under a title, such as `closed dates' and `minimum time required to visit an
attraction' listed under `open hours.' The properties associated with the titles and sub-titles on the web sites are treated as
the properties of the concepts or sub-concepts, respectively,
in the local ontologies. Attractions listed on these web sites
are instances of local ontologies