What flammable gas has the word vinyl in the name and has safety as well as classification and labeling from NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q10913792 . ?sbj wdt:P4952 wd:Q51139288 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'vinyl')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
flammable gas: Q10913792 nfpa 704: standard system for the identification of the hazards of materials for emergency response: Q51139288