Non existing prefix

[igrangel]

The URL http://voag.linkedmodel.org/schema/voag# and http://voag.linkedmodel.org/owl/schema/voag# do not exist

[sebbader]

I guess you refer to the fact that the voag.linkedmodel.org server is down (all the time?). I replaced the entities from the voag namespace with own ones and shifted the relation to voag into Literal notes.