URI of annotation property that is used to specify a list of domain URIs that
should take precedence over the domain specification in the ontoloyg model.
Retrieves all unique labels for the specified resource using the
the following priority order
http://eagle-i.org/ont/app/1.0/preferredLabel
http://purl.obolibrary.org/obo/IAO_0000111 (IAO preferred term)
rdfs:label
http://purl.obolibrary.org/obo/IAO_0000118 (IAO alternate term)
Walks the entire eagle-i data model by
starting with the set of "root resource" (top-level resource)
classes and traversing through object property relationships
and subclass relationships until every class and property
in the data model has been visited.