Tell me flammable gas whose name has the word vinyl in it.
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:/instance of/ wd:/flammable gas/ . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'vinyl')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 