GitLab

This reverts commit f615629e.

This reverts commit 896269d5.

As not to confuse with ontology namespace

- uses named graph in inserts and deletes
- workaround for INSERT DATA to work with bnodes in opensource virtuoso
- some small query fixes

- uses named graph in inserts and deletes
- workaround for INSERT DATA to work with bnodes in opensource virtuoso
- some small query fixes

Note: Triplestore must be manually provisioned