What is {safety classification and labelling} of {titanium dioxide} that is {NFPA Health} is {1} ?
What is the safety classification and labelling of titanium dioxide that for NFPA Health is 1 ?
SELECT ?obj WHERE { wd:Q193521 p:P4952 ?s . ?s ps:P4952 ?obj . ?s pq:P993 ?x filter(contains(?x,'1')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q193521> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P4952> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P993> <1>
} 

Is NFPA classification of 1 a safe labelling for tiatnium dioxide ?