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[bioontology-support] URIs of classes and properties

Ray Fergerson ray.fergerson at
Fri Dec 5 16:14:52 PST 2014

I think that what you want to do is to have a reference to the underlying 
concept in your RDF dataset and not to the BioPortal visualization of that 
object. The objects themselves, concepts and properties, are best referenced 
by their ids, in this case, as 
defined by the authors of the ontology. The purls that we provide are for 
the BioPortal visualization of these objects. It seems unlikely that this is 
what you want.

If you do want the BioPortal visualization, then the form below is what you 
need to use for classes. We do not currently support the visualization of 
properties themselves, and thus there is not BioPortal Purl for them.


From: bioontology-support 
[mailto:bioontology-support-bounces at] On Behalf Of Giorgos 
Sent: Thursday, December 4, 2014 3:16 AM
To: support at
Subject: [bioontology-support] URIs of classes and properties

Dear BioPortal team,

I would like to ask how I can refer to unique classes and properties of 
ontologies hosted at in my RDF dataset.

I am interested in the Ontology of Physical Exercises (OPE) and if I 
understand correctly, all classes begin with the URI 
"" plus the unique ID of 
each term. For example, the URI of the class “Ailment” is

Is this there a more user friendly approach to refer to that class in an RDF 

Furthermore, I would like to ask how could I find the URI of an rdf:Property 
in the same ontology? I tried to use the same convention but it did not 
work. For example, the property canMonitor is not accessible through the URI

Thank you in advance,
Giorgos Bamparopoulos

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