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XSPARQL compliance test suite

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prefix  foaf:   
prefix    ex:   

{for $name $plan $dept $img 
from  where 
{ 
    $person foaf:name $name  
    { $person ex:healthplan $plan } union { $person ex:department $dept } 
    optional { 
        $person a foaf:person
        graph $g { 
            [] foaf:name $name;
               foaf:depiction $img 
        } 
    } 
}
return 
 
	{$plan}
	{$name}
	{$img}
	{$dept}
}