%VOSWARNING% FOAF: * aimChatID * based_near * birthday * family_name * firstName * gender * homepage * icqChatID * maker * mbox * msnChatID * nick * phone * yahooChatID SIOC: * has_container * has_creator * id * link * topic vcard: * ADR * BDAY * CATEGORIES * EMAIL * FN * N * NICKNAME * UID prefix sioc: prefix sioct: select distinct ?attribute where { ?forum a sioct:AddressBook . ?forum sioc:container_of ?post . ?post ?attribute ?o } order by ?attribute ---++++Sample Data (Live Query Results) * Click [[http://demo.openlinksw.com/sparql?default-graph-uri=http%3A%2F%2Fdemo.openlinksw.com%2Fdataspace&should-sponge=&query=prefix+sioc%3A+%3Chttp%3A%2F%2Frdfs.org%2Fsioc%2Fns%23%3E%0D%0Aprefix+sioct%3A+%3Chttp%3A%2F%2Frdfs.org%2Fsioc%2Ftypes%23%3E%0D%0Aselect+distinct+%3Fattribute%0D%0Awhere%0D%0A++%7B%0D%0A++++%3Fforum+a+sioct%3AAddressBook+.%0D%0A++++%3Fforum+sioc%3Acontainer_of+%3Fpost+.%0D%0A++++%3Fpost+%3Fattribute+%3Fo++%0D%0A++%7D%0D%0Aorder+by+%3Fattribute&format=text%2Fhtml&debug=on][*Here*]] for a live SPARQL Query (via SPARQL Protocol) against a collection of AddressBook Properties list .