SELECT
  ?res, ?len
WHERE
  (?res, <http:Content-Type>, "image/gif"),
  (?res, <http:Content-Length>, ?len),
  (?res, <proxymeta:httpTransactions>, ?hits)
AND
  ?len > 10000
USING
  http FOR <http://www.ietf.org/rfc/rfc2616#>,
  proxymeta FOR <http://www.decafbad.com/2003/02/proxymeta#>, 
  rdf FOR <http://www.w3.org/1999/02/22-rdf-syntax-ns#>,
  dc FOR <http://purl.org/dc/elements/1.0/>