Name a W3C Recommendation that starts with letter X
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:/instance of/ wd:/W3C Recommendation/ . ?sbj wdt:/standards body/ wd:/World Wide Web Consortium/ . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'x')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 