PREFIX era: SELECT DISTINCT ?sectionOfLine ?p ?rinfIndex WHERE { GRAPH { VALUES ?inCountry {} . VALUES ?p {era:length} ?sectionOfLine a era:SectionOfLine . ?sectionOfLine era:inCountry ?inCountry. GRAPH {?p era:rinfIndex ?rinfIndex} FILTER NOT EXISTS {?sectionOfLine ?p ?propertyValue } } } ORDER BY ?sectionOfLine LIMIT 1000