SPARQL Endpoint
The EventKG SPARQL endpoint can be found here.Search and Example Resources
Example Queries
Results shown on this page are from older versions of EventKG and can deviate from current results.
- Most linked events in the Russian Wikipedia
SELECT (STR(?label) AS ?eventLabel) (SUM(?link_count) AS ?links) WHERE {
?event rdf:type sem:Event .
?event skos:prefLabel ?label .
?relation rdf:type eventkg-s:LinkRelation .
?relation rdf:object ?event .
GRAPH eventkg-g:wikipedia_ru {
?relation eventkg-s:links ?link_count .
} .
} GROUP BY ?event ?label
ORDER BY DESC(SUM(?link_count))
LIMIT 7
eventLabel links Eastern Front of World War II 54011 World War II 24880 World War I 23393 Russian Census of 2010 10987 October Revolution 7937 Academy Awards 7801 Russian Civil War 7514 - Sub-events of World War II that started between February 12 and February 28, 1941.
SELECT ?startTime SAMPLE(STR(?description)) (?sa AS ?linkDBpediaEn)
WHERE {
?event owl:sameAs dbr:World_War_II .
?event sem:hasSubEvent* ?subEvent .
?subEvent sem:hasBeginTimeStamp ?startTime .
OPTIONAL {
GRAPH eventkg-g:wikipedia_en { ?subEvent dcterms:description ?description . } .
FILTER(LANGMATCHES(LANG(?description), "en")) .
}
OPTIONAL { GRAPH eventkg-g:dbpedia_en { ?subEvent owl:sameAs ?sa . } . } .
FILTER (?startTime >= "1941-02-12"^^xsd:date) .
FILTER (?startTime < "1941-02-28"^^xsd:date) .
FILTER(BOUND(?sa) || BOUND(?description)) .
}
GROUP BY ?startTime ?subEvent ?sa
ORDER BY ASC(?startTime)
startTime description linkDBpediaEn 1941-02-12 WWII: Erwin Rommel arrives in Tripoli. 1941-02-14 Admiral Kichisaburō Nomura begins his duties as Japanese Ambassador to the United States. 1941-02-17 The Battle of Trebeshina or the Battle of Mal Trebeshinë, was a series of engagements fought between the Greek and Italian armies in south-eastern Albania during the Greco-Italian War. http://dbpedia.org/resource/Battle_of_Trebeshina 1941-02-19 Three Nights' Blitz over Swansea, South Wales: Over these 3 nights of intensive bombing, which lasted a total of 13 hours and 48 minutes, Swansea's town centre is almost completely obliterated by the 896 high explosive bombs employed by the Luftwaffe; 397 casualties and 230 deaths reported. 1941-02-22 Bombards Barawa, on the coast between Kismayo and Mogadishu. 1941-02-25 Operation Abstention was a code name given to a British invasion of the Italian island of Kastelorizo, off Turkey, during the Second World War, in late February 1941. http://dbpedia.org/resource/Operation_Abstention 1941-02-27 The Action of 27 February 1941 was a single ship action between a New Zealand cruiser and an Italian auxiliary cruiser. http://dbpedia.org/resource/Action_of_27_February_1941 1941-02-27 The New Zealand Division cruiser HMS Leander (1931) sinks Italian armed merchant raider Ramb I off the Maldives. - Locations of the Battle of Trafalgar (Links for EventKG, Wikdiata and the English DBpedia)
SELECT ?locationEventKG ?locationWikidata ?locationDBpediaEn
WHERE
{
?event rdf:type sem:Event .
?event owl:sameAs dbr:Battle_of_Trafalgar .
GRAPH eventkg-g:event_kg {?event sem:hasPlace ?loc} .
GRAPH eventkg-g:event_kg {?event sem:hasPlace ?locationEventKG} .
GRAPH eventkg-g:dbpedia_en { ?locationEventKG owl:sameAs ?locationDBpediaEn . }
GRAPH eventkg-g:wikidata { ?locationEventKG owl:sameAs ?locationWikidata . }
}
- Start and end times of World War II from different sources
SELECT ?startTime ?endTime ?graph
WHERE
{
?event owl:sameAs dbr:World_War_II .
GRAPH ?graph { ?event sem:hasBeginTimeStamp ?startTime } .
GRAPH ?graph { ?event sem:hasEndTimeStamp ?endTime } .
}
startTime endTime graph 1939-01-01 1945-09-02 http://eventKG.l3s.uni-hannover.de/graph/dbpedia_fr 1939-01-01 1939-09-01 http://eventKG.l3s.uni-hannover.de/graph/yago 1939-09-01 1945-09-02 http://eventKG.l3s.uni-hannover.de/graph/event_kg 1939-09-01 1945-09-02 http://eventKG.l3s.uni-hannover.de/graph/wikidata
Results shown on this example page may come from EventKG versions.