This is one of several semantic repositories that contains and publishes co-reference information, forming the underlying distributed storage model behind the RKB Explorer initiative.

This domain is different from most of the other rkbexplorer domains.

Its sole purpose is to publish the coreference data from OpenCyc provided by David Baxter, from Cycorp Inc..

Consequently there is no knowledge at all in the knowledge base and SPARQL endpoint itself.
If you do a search in the Knowledge Base you will find nothing.
Everything is to be found by presenting a URI to the CRS at

To look up a particular URI or bundle, please enter it below...

You can access it with a URI such as:

You can get different sorts of output:

Services offered —

A typical URI you can try resolving is

Current statistics for this CRS ( —

The major funding for the RKB Explorer Initiative was provided by the ReSIST EU-funded Network of Excellence (contract number 026764).

These services are hosted by the School of Electronics and Computer Science at the University of Southampton (UK).

If you have any enquiries, please email the administrator of this repository.