query-50e2af789b76f8046c551f0c003373a8
Count clinical trials SELECT (count(distinct ?item) as ?count) WHERE {?item p:P31/ps:P31/wdt:P279* wd:Q30612}
Use at
- https://query.wikidata.org/sparql
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX p: <http://www.wikidata.org/prop/>
# Count clinical trials
SELECT (count(distinct ?item) as ?count)
WHERE {?item p:P31/ps:P31/wdt:P279* wd:Q30612}
Query found at
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v2("?count")
v1("?item"):::projected
a1((" "))
a2((" "))
c4(["wd:Q30612"]):::iri
v1 --"p:P31"--> a1
a1 --"p:statement/P31"--> a2
a2 --"p:direct/P279"--> c4
bind1[/"count(?item)"/]
v1 --o bind1
bind1 --as--o v2