wikidata

Wikidata

Wikidata is a free and open knowledge base that can be read and edited by both humans and machines

20.9B triples
1824 classes
61371 properties
2.3B subjects

Wikidata is a free and open knowledge base that can be read and edited by both humans and machines. This Proto-OKN copy of the Wikidata triplestore is provided by the NSF FRINK project.

Scientific articles in Wikidata about a cell type that Ubergraph says is part of the abdomen 
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wdtn: <http://www.wikidata.org/prop/direct-normalized/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX cell: <http://purl.obolibrary.org/obo/CL_0000000>
PREFIX abdomen: <http://purl.obolibrary.org/obo/UBERON_0000916>
PREFIX part_of: <http://purl.obolibrary.org/obo/BFO_0000050>
SELECT DISTINCT ?cell ?cell_label ?article ?title
WHERE {
  ?cell rdfs:subClassOf cell: .
  ?cell part_of: abdomen: .
  ?wikicell wdtn:P7963 ?cell .
  ?article wdt:P921 ?wikicell .
  ?article rdfs:label ?title .
  ?cell rdfs:label ?cell_label .
}
LIMIT 1000

graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
  v3("?article"):::projected 
  v1("?cell"):::projected 
  v5("?cell_label"):::projected 
  v4("?title"):::projected 
  v2("?wikicell")
  c2([obo:CL_0000000]):::iri 
  c4([obo:UBERON_0000916]):::iri 
  v1 --"rdfs:subClassOf"-->  c2
  v1 --"obo:BFO_0000050"-->  c4
  v2 --"wdtn:P7963"-->  v1
  v3 --"wdt:P921"-->  v2
  v3 --"rdfs:label"-->  v4
  v1 --"rdfs:label"-->  v5
Run in FRINK
SPARQL Endpoint https://frink.apps.renci.org/wikidata/sparql
Triple Pattern Fragments https://frink.apps.renci.org/ldf/wikidata
ClassEntities
PropertyTriples