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XSPARQL compliance test suite

The newest version!

prefix  foaf:   
prefix    ex:   

{for $id $ssn
from  where 
{ 
    $person 
        a foaf:person;
        foaf:name $name . 
    graph $x { 
        [] foaf:name $name;
           foaf:nick $nick
    } 
    optional { 
        { $person ex:empid $id } union { $person ex:ssn $ssn } 
    } 
} 
return 
 
	{$id}
	{$ssn}
}