Topography. association ../world/index. association Geography. association Inland_waterways. Geospatial Knowledge Management http://www.geospatial-online.com/geospatialsolutions/article/articleDetail.jsp?id=211313 graphic has_part Bridge. has_part Building. has_part Knowledge_representation. has_part Ontology. has_part Railway. has_part River. has_part Street. has_part Town. is_type_of Concept. Ontologies at OS http://www.comp.leeds.ac.uk/brandon/cosit03ontology/position_papers/Goodwin.html Ontology structure Relation. Ordnance survey http://www.ordnancesurvey.co.uk/oswebsite/ Pervasive computing Spatial Ontology, Temporal Ontology, Person Profile/User Model, Event Ontology, Device Profile, Digital Document, Security and Privacy Policy Political Europe. Rule, area containment Which area features can be contained within which area featuers Rule, line binding Which line features can bound which area features Rules, 70,000 @ OS http://www.mindswap.org/2005/OWLWorkshop/sub18.pdf SUMO Ontology_sumo.       Vr.155, Dec 2010     Readme      ..