Tell me me a unit of energy whose name consist of the word "joule" and whose based on metre
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:/instance of/ wd:/unit of energy/ . ?sbj wdt:/based on/ wd:/metre/ . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'joule')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 