PREFIX p: <http://www.wikidata.org/prop/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX prov: <http://www.w3.org/ns/prov#>
start = @<#pharmaceutical_drug>
<#pharmaceutical_drug> EXTRA p:P31 {
# P31 = instance of & wd:Q12140 = Pharmaceutical drug
p:P31 { ps:P31 [
wd:Q12140 # Pharmaceutical drug
wd:Q11173 # chemical compound
wd:Q35456 # essential medicine
] ;
prov:wasDerivedFrom @<#reference>+ ;}* ;
# P274 = chemical formula
p:P274 { ps:P274 LITERAL ;
prov:wasDerivedFrom @<#reference>+ ;
}* ;
#has active ingredient
p:P3781 { ps:P3781 {p:P31 {ps:P31 [wd:Q11344]+} }*;
}
}
<#reference> {
}