How to display all propernoun like Manchester_United_F_C., Arsenel_FC, United_States using SPARQL over DBpedia ?
If you want to display all propernouns from DBpedia and only propernouns, you'll have to manually select the labels that correspond to proper noun and filter out those that don't.
Start with this query:
SELECT DISTINCT ?label WHERE {
?s rdfs:label ?label .
}
There are 21,695,594 triples matching this triple pattern, so good luck to figure out which are propernouns, which are not.