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doc_what_are_cvterms Class Reference

## Detailed Description

  The SBML Level 2 and Level 3 specifications define a simple format for annotating models when (a) referring to controlled vocabulary terms and database identifiers that define and describe biological and other entities, and (b) describing the creator of a model and the model's modification history. The annotation content is stored in `<annotation>` elements attached to individual SBML elements. The format for storing the content inside SBML `<annotation>` elements is a subset of W3C RDF (Resource Description Format) expressed in XML. The CVTerm class provides a programming interface for working directly with controlled vocabulary term ("CV term") objects without having to deal directly with the XML form. When libSBML reads in an SBML model containing RDF annotations, it parses those annotations into a list of CVTerm objects, and when writing a model, it parses the CVTerm objects back into the appropriate SBML `<annotation>` structure.