Google Refine provenance vocabulary (grefine) Documentation and Examples

An example of how the provenance of RDF data produced by Google Refine RDF Extension can be described using the grefine vocabulary

<http://ckan.net/files/f/ex.rdf> a opmv:Artifact;
dct:source <http://ckan.net/files/f/ex.csv> ;
grefine:wasExportedBy [
a grefine:ExportUsingRDFExtension, opmv:Process;
opmv-common:usedData <http://ckan.net/files/f/ex.csv> ;
opmv:wasPerformedAt <http://reference.data.gov.uk/id/gregorian-instant/2011-06-03T00:18:00> .
grefine:operationDescription <http://ckan.net/files/f/ex.json> .
]
.
<http://ckan.net/files/f/ex.json> a grefine:OperationDescription, opmv:Artifact .