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[bioontology-support] Minimal TTL file for SKOS

Davis, Daniel (NIH/NLM) [C] daniel.davis at
Thu Apr 4 08:05:30 PDT 2019

The attached file, simple-ontology.ttl, is an effort to understand how to use BioPortal effectively.  It raises certain questions about how to upload SKOS.   It is accompanied by a simple-ontology.nt, which proves that it is well-formed as it can  be converted from TTL and NT and back and forth.

This gives rise to certain questions:

  *   Is TTL supported, or must the file be in RDF/XML or some similar format.
  *   Must the prefix used in the TTL file for subjects match that claimed in the Submit New Ontology wizard?
  *   Does BioPortal have support for both "skos:hasTopConcept" and "skos:topConceptOf".


Dan Davis, Systems/Applications Architect (Contractor),
Office of Computer and Communications Systems,
National Library of Medicine, NIH

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