query-c8ab3ec621e8f3f36dc0249ae8780641

rq turtle/ttl

Works by Canova 09:12, 13 October 2016 (UTC) dosisEpìWhy this query doesn't work? Thank you, --

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
  ?work ?workLabel ?instanceLabel (CONCAT(str(YEAR(?date))) as ?year) ?materialLabel ?image
  (GROUP_CONCAT(DISTINCT ?instanceLabel; separator=", ") as ?i)
WHERE {
  ?work wdt:P170 wd:Q5547 .
  ?work wdt:P31 ?instance .
  ?work wdt:P571 ?date .
  ?work wdt:P186 ?material .
  ?work wdt:P18 ?image .
     SERVICE wikibase:label { bd:serviceParam wikibase:language "en,fr" }
}

Query found at