Question: What is the safety classification and labelling of titanium dioxide that for NFPA Health is 1 ?
Paraphrase: Is NFPA classification of 1 a safe labelling for tiatnium dioxide ?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q193521 p:P4952 ?s . ?s ps:P4952 ?obj . ?s pq:P993 ?x filter(contains(?x , '1')) }