|  |  |  |  | 
| nfo:RegionOfInterestContentnfo:RegionOfInterestContent | 
Content in the area. There is a predefined set of contents in the spec: http://www.metadataworkinggroup.org
    http://www.w3.org/2000/01/rdf-schema#Resource 
        nie:InformationElement 
        ╰── nfo:RegionOfInterestContent