Since WissKI needs an ontology to build the semantic relations, you have to import it into your triple store. Ensure, that you have ontology suitable to your needs, as described in chapter Develop the ontology.
If you want to reimport or replace an existing ontology, you have to delete it first.
Open GraphDB and be sure you are connected with your repository-id , then navigate to Import RDF, click on Upload RDF files and choose your ontology file. Click Import.
Specify your base-iri and ontology-graph .
The base-iri and ontology-graph must NOT be the same as your default-graph-uri you entered at your salz adapter. If you delete it, because you want to update your ontology all data would be lost!
Delete existing ontology
Open GraphDB and click on Explore Graphs overview. In the row of your ontology-graph click on the garbage can to remove the graph. Confirm to clear the graph by clicking Yes.
Update salz adapter
Navigate to Configuration WissKI Salz Adapters (WissKI Salz section), select the repository-id of the adapter you reimported the ontology and click on Compute Type and Property Hierarchy and Domains and Ranges, check Re-Compute results and start reasoning. You may see some errors of missing domains and ranges of some properties if you use Erlangen CRM / OWL. Check reasoning results if ontology is imported.
For an Export open GraphDB and navigate to Explore Graphs overview and unfold the the tab Export repository. Choose N-Quads from the list an save it.