query-222a4523f69e60438e5711643183449a

rq turtle/ttl

is related to labels. The label service is very useful if you just want to display the label of a variable. But if you want to do stuff with the label – for example: check if it starts with “Mr. ” – you’ll find that it doesn’t work: FILTERAnother possible use of

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 ?human ?humanLabel
WHERE
{
  ?human wdt:P31 wd:Q15632617.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  # This FILTER does not work!
  FILTER(STRSTARTS(?humanLabel, "Mr. ")).
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v2("?human"):::projected v1("?humanLabel"):::projected c5(["bd:serviceParam"]):::iri c7(["en"]):::literal c3(["wd:Q15632617"]):::iri f0[["starts-with(?humanLabel,'Mr. ')"]] f0 --> v1 v2 --"wdt:P31"--> c3 subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c5 --"wikibase:language"--> c7 end