Addressbook Data Space PREFIX sioc: <http://rdfs.org/sioc/ns#> PREFIX sioct: <http://rdfs.org/sioc/types#> PREFIX foaf: <http://xmlns.com/foaf/0.1/> SELECT DISTINCT ?nick, ?fname, ?post, ?aimChatID, ?based_near, ?birthday, ?family_name, ?firstName, ?gender, ?homepage, ?icqChatID, ?mbox, ?msnChatID, ?phone, ?yahooChatID WHERE { ?forum a sioct:AddressBook . ?forum sioc:container_of ?post. optional{ ?post foaf:maker ?maker }. optional{ ?maker foaf:nick ?nick } . optional{ ?maker foaf:name ?fname } . optional{ ?maker foaf:aimChatID ?aimChatID } . optional{ ?maker foaf:based_near ?based_near } . optional{ ?maker foaf:birthday ?birthday } . optional{ ?maker foaf:family_name ?family_name } . optional{ ?maker foaf:firstName ?firstName } . optional{ ?maker foaf:gender ?gender } . optional{ ?maker foaf:homepage ?homepage } . optional{ ?maker foaf:icqChatID ?icqChatID } . optional{ ?maker foaf:mbox ?mbox } . optional{ ?maker foaf:msnChatID ?msnChatID } . optional{ ?maker foaf:phone ?phone } . optional{ ?maker foaf:yahooChatID ?yahooChatID } . } Sample Data (Live Query Results) Click Here for a live SPARQL Query (via SPARQL Protocol) against a collection of AddressBook posts.