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[bioontology-support] Error rdf

Jennifer Leigh Vendetti vendetti at
Fri Sep 18 16:21:27 PDT 2020

Hello Dan,

I looked at the processing log files on our production server. BioPortal can’t load RBO.owl because the ontology source file has 26 occurrences of invalid values in xml:lang attributes. One such example can be found on line 53,078 (DNA microarray class):

 <owl:Class rdf:about="">
    <obo:IAO_0000119 xml:lang="2008/03/03">Web:<></obo:IAO_0000119>
    <rdfs:label xml:lang="en">DNA microarray</rdfs:label>

All of these occurrences need to be corrected to use a valid value, e.g., xml:lang=“en”. After making these changes, I believe the system will be able to consume the ontology without issues.

Kind regards,

On Sep 18, 2020, at 3:54 PM, Berrios, Daniel C. (ARC-SCR)[UNIVERSITIES SPACE RESEARCH ASSN] <daniel.c.berrios at<mailto:daniel.c.berrios at>> wrote:

I tried updating our ontology with a new version downloaded directly from WebProtege, but it’s given “rdf error” message in BioPortal twice now…. Can you give more detail?


Dan Berrios, MD PhD MPH
USRA/NASA Ames Research Center
650 604 0470 (office)
415 902 5099 (cell)

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