PREFIX a: <http://www.w3.org/2000/10/annotation-ns#>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT ?annotates
WHERE { ?annot a:annotates ?annotates .
?annot dc:created ?date .
FILTER ( ?date = xsd:dateTime("2004-01-01T00:00:00Z") || ?date = xsd:dateTime("2005-01-01T00:00:00Z") ) }