Tell me the occupational carcinogen that has a safety classification and labelling as Regulation (EC) No. 1272/2008 whose name contains the word benzene?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q21074597 . ?sbj wdt:P4952 wd:Q2005334 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'benzene')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
occupational carcinogen: Q21074597 regulation (ec) no. 1272/2008: Q2005334