Dear Nina, Tobias,
 I'm trying to get access to anonymous Resources of an RDF document
using Jena. I want to iterate over all FeatureValue nodes and read their
value and the URI of the corresponding compound. Do you have any idea
how I could do that? 

Is there a way to retrieve these information in a List or via an
ExtendedIterator somehow? 

Do you think that it would be more convenient if we didn't use anonymous
nodes. For example, dataEntries could be URIs in the form
http://opentox.org/dataEntry/xyz ... (Well I'm not either sure about
that). 

Tobias,  I believe we're also working on parsing RDF documents (i.e.
using RDF representations to generate weka.core.Instances objects), so
we could collaborate on that. 

My source code can be found at http://github.com/sopasakis/yaqp .

Best Regards,
Pantelis