PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
PREFIX dctype: <http://purl.org/dc/dcmitype/>
PREFIX dir: <http://schemas.talis.com/2005/dir/schema#>

describe ?s where 
{ 
            ?s rdf:type dctype:Collection . 
            ?s dir:isAccessedVia ?sv .
} 
limit 10 
offset 10