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| Prefix | Namespace IRI |
|---|---|
| n12 | http://caligraph.org/ontology/Crossing_of_the_James_River_(Virginia) |
| n11 | http://caligraph.org/ontology/Crossing_of_the_Saint_John_River_(Bay_of_Fundy) |
| n9 | http://caligraph.org/ontology/Crossing_of_Rock_Creek_(Potomac_River_tributary) |
| n6 | http://caligraph.org/ontology/Crossing_of_the_St. |
| n8 | http://en.wikipedia.org/wiki/Category: |
| rdfs | http://www.w3.org/2000/01/rdf-schema# |
| n10 | http://caligraph.org/ontology/River_crossing_in_Washington_(state) |
| n2 | http://caligraph.org/ontology/Crossing_of_the_Colorado_River_(Texas) |
| rdf | http://www.w3.org/1999/02/22-rdf-syntax-ns# |
| owl | http://www.w3.org/2002/07/owl# |
| clgo | http://caligraph.org/ontology/ |
| prov | http://www.w3.org/ns/prov# |
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