select ?dd, ?date, ?x, ?val, ?mb  from  http://swordfish.rdfweb.org/photos/rdf/000068.rdf  where (dc::description ?x ?dd) (dc::date ?x ?date)   (foaf::location ?x ?l) (rdf::value ?l ?val)   (foaf::depiction ?per ?x) (foaf::mbox ?per ?mb)  using dc for http://purl.org/dc/elements/1.1/  foaf for http://xmlns.com/foaf/0.1/  rdf for http://www.w3.org/1999/02/22-rdf-syntax-ns#