query-014b492aa78de8cd313e0819161d1505

rq turtle/ttl

Queries ]reply[17:54, 7 May 2019 (UTC)) talk (Tobias1984Here is a handy query to find all units with start and end time and the fossils they bear, also with start and end time:

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?formation ?formationLabel ?formationStartLabel ?formationEndLabel ?fossil ?fossilLabel ?fossilStartLabel ?fossilEndLabel
WHERE {
  ?formation wdt:P31 wd:Q736917 .
  OPTIONAL { ?formation wdt:P523 ?formationStart . }
  OPTIONAL { ?formation wdt:P524 ?formationEnd . }
  ?formation wdt:P1137 ?fossil .
  OPTIONAL { ?fossil wdt:P523 ?fossilStart . }
  OPTIONAL { ?fossil wdt:P524 ?fossilEnd . }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" } .
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?formation"):::projected v3("?formationEnd") v2("?formationStart") v4("?fossil"):::projected v6("?fossilEnd") v5("?fossilStart") c7(["bd:serviceParam"]):::iri c2(["wd:Q736917"]):::iri c9(["en"]):::literal v1 --"wdt:P31"--> c2 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v1 -."wdt:P523".-> v2 end subgraph optional1["(optional)"] style optional1 fill:#bbf,stroke-dasharray: 5 5; v1 -."wdt:P524".-> v3 end v1 --"wdt:P1137"--> v4 subgraph optional2["(optional)"] style optional2 fill:#bbf,stroke-dasharray: 5 5; v4 -."wdt:P523".-> v5 end subgraph optional3["(optional)"] style optional3 fill:#bbf,stroke-dasharray: 5 5; v4 -."wdt:P524".-> v6 end subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c7 --"wikibase:language"--> c9 end