Hi Bianca,
In addition to Paul's answer:
There is a full text search facility, a OpenRefine compliant reconciliation API, a sparql endpoint and a linked data fragment server all accessible (with examples) from the home page at http://kbodata.be/.
You can easily fire SPARQL queries at the KBO fragments server through our online client: http://client.linkeddatafragments.org/#startFragment=http%3A%2F%2Fdata.kboda... Some examples are included; this might help you discover what's in there.
Best,
Ruben