Question: What is the NFPA Health for DDT with the safety classification and labelling as NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q163648 p:P4952 ?s . ?s ps:P4952 wd:Q51139288 . ?s pq:P993 ?value}