Query to display all classes and all predicates of DBpedia

dbpedia, semantic-web, semantics, sparql

Solution

How about:

SELECT * { ?x a owl:Class }

and:

SELECT * { ?x a rdf:Property }

I don't know if these are all classes/properties.

Problem

How to display all classes and all predicates of DBpedia using sparql in dbpedia.org/snorql

Original source