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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Mol Reprod Dev. 2010 Apr;77(4):314–329. doi: 10.1002/mrd.21130

Figure 3.

Figure 3

A partial OBO stanza displaying the term vitellogenesis. An OBO stanza is the textual description of an ontology term in the OBO format. Each term has an ID, a unique name, a textual definition that is supported by a reference, appropriate synonyms and relationships with other terms. Each term in the ontology is represented in an OBO stanza similar to this example. The definition of a term is tied to its ID. Although the string to describe a term may change, the ID of a term is stable and always represents the same biological object.