Hello, We have another call coming up on June 30th at the usual time and place: UTC 15:00 = 8:00 PDT = EDT 11:00 = 17:00 CEST. Call: +1-734-615-7474 (Please use if you do not pay for Long Distance) or +1-866-411-0013 (toll free US/Canada Only) Enter access code: 0186145 Since last call I've also worked to write out the NML schema in OWL so that we can use a graphical editor that was created in our group. Please have a look: http://nml-editor.appspot.com/ In the ontology I defined the superclass "relation" and some specific relations, but unfortunately our editor has a bit of trouble with that so only the generic "relation" is used. Also the editor does not yet support the creation of OWL/RDF Containers. Jeroen.