PREFIX case-investigation:
PREFIX uco-core:
SELECT DISTINCT ?nSourceObject
WHERE
{
# Locate the objects by crossing the rootExhibitNumber
# with the exhibitNumber, to find the source ProvenanceRecord.
?nProvenanceRecord
uco-core:object ?nSourceObject ;
case-investigation:rootExhibitNumber ?lExhibitNumber ;
case-investigation:exhibitNumber ?lExhibitNumber ;
.
}