Tell me the rock band that has PureVolume as website and contains the word u2 in it's name?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q5741069 . ?sbj wdt:P553 wd:Q1508912 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'u2')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
rock group: Q5741069 purevolume: Q1508912