//create subject Resource
Resource subject;
if(subjectKey.startsWith(HTTP)) {
subject = new URIImpl(subjectKey);
} else {
subject = new BNodeImpl(subjectKey);
}
for(Map.Entry<String, Set<Map<String, String>>> entry : subjects.get(subjectKey).entrySet()) {
//create property URI
URIImpl property = new URIImpl(entry.getKey());