# In this query a search for the BODY content is run on the IMAP server.
# The "bodyfilter" property has been created to prefilter bodies on server 
# side, while "body" will contain the full message body. Note that the
# first search done on IMAP server is just a normal substring search,
# while the second one is a full working regular expression run over the
# downloaded messages

PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
prefix email: <http://davide.eynard.it/rdf/email#>

select * where
{
	?x email:subject 	?subject .
	?x email:bodyfilter	"http://en.wikipedia.org/wiki/Semantic_Wiki" .
	?x email:body 		?body .

	FILTER regex(?body, "http://en.wikipedia.org/wiki/Semantic_Wiki[\\s]", "i") .
}