@prefix log:    <http://www.w3.org/2000/10/swap/log#> .
@prefix rdfs:   <http://www.w3.org/2000/01/rdf-schema#> .
@prefix rs:     <http://www.w3.org/2001/sw/DataAccess/tests/result-set#> .
@prefix rdf:    <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix :       <#> .

[]  a   rs:ResultSet ;
    rs:resultVariable
        "x" ;
    rs:resultVariable
        "y" ;
    rs:resultVariable
        "z" ;
    rs:size
        "0" .