[Neo] VerboseQuadStore and spaql

[Lyudmila Balakireva]

Hello,
I was testing sail rdf  component  and  I  made test store based 
on    VerboseQuadStore .
I have problem with predicate  in sparql .  If I  specify  predicate 
like  ?x dc:type ?z  the query does not returning anything. (I do 
have  dc namespace prefix). It is work if I do (?x?y?z) or (?x ?y 
"snow")  or url in subject or object position.
It is work with specific predicate if I do getStatements().
Any clue would be great.
Thank you, Luda