Data Space Post/Entry/Item Properties (sioc:Post predicates) attachment content has_container has_creator id link links_to reply_of topic (tags) has_reply UNKNOWN tag: http://www.w3.org/1999/xhtml:h6Query PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX sioc: <http://rdfs.org/sioc/ns#> PREFIX sioct: <http://rdfs.org/sioc/types#> SELECT DISTINCT ?attribute WHERE { ?forum rdf:type sioct:Wiki . ?forum sioc:container_of ?post . ?post ?attribute ?o } ORDER BY ?attribute