---+++Dump of all Bookmark Urls PREFIX sioc: PREFIX sioct: PREFIX dct: PREFIX dcc: PREFIX bmk: SELECT ?bookmark WHERE { ?forum a sioct:BookmarkFolder . ?forum sioc:container_of ?post . OPTIONAL{ ?post bmk:recalls ?bookmark}. } ---++++Sample Data (Live Query Results) * View Query Results [[http://demo.openlinksw.com/sparql?default-graph-uri=&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%0APREFIX+dct%3A+%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Felements%2F1.1%2F%3E%0D%0APREFIX+dcc%3A+%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fterms%2F%3E%0D%0APREFIX+bmk%3A+%3Chttp%3A%2F%2Fwww.w3.org%2F2002%2F01%2Fbookmark%23%3E%0D%0ASELECT+%3Fbookmark%0D%0AWHERE+%0D%0A++%7B%0D%0A++++%3Fforum+a+sioct%3ABookmarkFolder+.%0D%0A++++%3Fforum+sioc%3Acontainer_of+%3Fpost+.%0D%0A++++OPTIONAL%7B+%3Fpost+bmk%3Arecalls+%3Fbookmark%7D.%0D%0A++%7D&format=text%2Fhtml&debug=on][(via SPARQL Protocol URL)]] * View Query Results [[http://demo.openlinksw.com/view/?format=application%2Frdf%2Bxml&maxrows=50&query=%0APREFIX%20sioc%3A%20%3Chttp%3A%2F%2Frdfs.org%2Fsioc%2Fns%23%3E%0APREFIX%20sioct%3A%20%3Chttp%3A%2F%2Frdfs.org%2Fsioc%2Ftypes%23%3E%0APREFIX%20dct%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Felements%2F1.1%2F%3E%0APREFIX%20dcc%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fterms%2F%3E%0APREFIX%20bmk%3A%20%3Chttp%3A%2F%2Fwww.w3.org%2F2002%2F01%2Fbookmark%23%3E%0ASELECT%20%3Fbookmark%0AWHERE%20%0A%20%20%7B%0A%20%20%20%20%3Fforum%20a%20sioct%3ABookmarkFolder%20.%0A%20%20%20%20%3Fforum%20sioc%3Acontainer_of%20%3Fpost%20.%0A%20%20%20%20OPTIONAL%7B%20%3Fpost%20bmk%3Arecalls%20%3Fbookmark%7D.%0A%20%20%7D&endpoint=/sparql&maxrows=50&default-graph-uri=][(via iSPARQL Results URL)]] * View Query Editor [[http://demo.openlinksw.com/isparql/?query=PREFIX%20sioc%3A%20%3Chttp%3A%2F%2Frdfs.org%2Fsioc%2Fns%23%3E%0APREFIX%20sioct%3A%20%3Chttp%3A%2F%2Frdfs.org%2Fsioc%2Ftypes%23%3E%0APREFIX%20dct%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Felements%2F1.1%2F%3E%0APREFIX%20dcc%3A%20%3Chttp%3A%2F%2Fpurl.org%2Fdc%2Fterms%2F%3E%0APREFIX%20bmk%3A%20%3Chttp%3A%2F%2Fwww.w3.org%2F2002%2F01%2Fbookmark%23%3E%0ASELECT%20%3Fbookmark%0AWHERE%20%0A%20%20%7B%0A%20%20%20%20%3Fforum%20a%20sioct%3ABookmarkFolder%20.%0A%20%20%20%20%3Fforum%20sioc%3Acontainer_of%20%3Fpost%20.%0A%20%20%20%20OPTIONAL%7B%20%3Fpost%20bmk%3Arecalls%20%3Fbookmark%7D.%0A%20%20%7D&endpoint=/sparql&maxrows=50&default-graph-uri=][(via iSPARQL Visual Query Editor URL)]]