PREFIX schema: <https://schema.org/>

DELETE { ?s a <http://example.org/migrants/person> . }
INSERT { ?s a schema:Person . }
WHERE  { ?s a <http://example.org/migrants/person> . }
;
DELETE { ?s a <http://example.org/migrants/location> . }
INSERT { ?s a schema:Place . }
WHERE  { ?s a <http://example.org/migrants/location> . }
;
DELETE { ?s a <http://example.org/migrants/organisation> . }
INSERT { ?s a schema:Organization . }
WHERE  { ?s a <http://example.org/migrants/organisation> . }