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http://data.ordnancesurvey.co.uk/ontology/
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geometry/
http://data.ordnancesurvey.co.uk/ontology/geometry/
rdfs:comment
http://www.w3.org/2000/01/rdf-schema#comment
A ontology to describe abstract geometries.
graph:default
https://triplydb.com/os/os/graphs/default