PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rss: <http://purl.org/rss/1.0/>
PREFIX leap2: <http://terms.leapspecs.org#>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
PREFIX dcterms: <http://purl.org/dc/terms/>
SELECT DISTINCT ?learner1 ?learner2 ?curriculumStandard ?commonLearningOutcome
FROM <http://www.ovod.net/wilbert/linkedData/leap1mod.rdf>
FROM <http://www.ovod.net/wilbert/linkedData/leap2aMod.rdf>
WHERE 
{GRAPH <http://www.ovod.net/wilbert/linkedData/leap2aMod.rdf>
 { ?c dc:creator ?learner2 .
?d rdf:type rss:item ;
 leap2:is_evidence_of ?curriculumStandard }
GRAPH <http://www.ovod.net/wilbert/linkedData/leap1mod.rdf>
{ ?a dc:creator ?learner1 .
?b rdf:type rss:item ;
 leap2:is_evidence_of ?curriculumStandard }
GRAPH ?curriculumStandard { 
?curriculumStandard dcterms:description ?commonLearningOutcome }
}