/usr/share/ontology/nie/nexif.ontology is in shared-desktop-ontologies 0.11.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 | [Ontology]
Version=1.0
Name=Nepomuk EXIF Ontology
Comment=The Nepomuk EXIF Ontology describes basic image metadata used in digital cameras and in image management software.
Namespace=http://www.semanticdesktop.org/ontologies/2007/05/10/nexif#
Path=/usr/share/ontology/nie/nexif.trig
MimeType=application/x-trig
Type=Data
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