Qualifier expresses the relationship between the object of the annotation and a well-defined representational unit. It allows a free text body. If only free text is present -this is equivalent to a tag.
ExactQualifier
skos:exactMatch
Used when the object of the relationship ao:hasTopic represents exactly the portion of the annotated document.
CloseQualifier
skos:closeMatch
Used when the object of the relationship ao:hasTopic represents closely but not exactly the portion of the annotated document.
BroadQualifier
skos:broadMatch
Used when the object of the relationship ao:hasTopic represents more broadly the portion of the annotated document.
NarrowQualifier
skos:narrowMatch
Used when the object of the relationship ao:hasTopic represents more specifically the portion of the annotated document.
