SELECT ?class WHERE { ?? (rdf:type|owl:type) ?class . }
Class
SELECT ?description WHERE { ?? (rdfs:comment|schema:description) ?description . }
A <em>Decimal Prefix</em> is a prefix for multiples of units that are powers of 10.
SELECT ?property ?value WHERE {
BIND (?? AS ?s)
?s ?property ?value .
FILTER (isLiteral(?value))
} LIMIT 1000