construct_wd_page_count.rq

# create Wikipedia page count for items with PM20 id
#
PREFIX schema: <http://schema.org/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX zbwext: <http://zbw.eu/namespaces/zbw-extensions/>
#
construct {
  ?wd zbwext:wdPageCount ?count .
}
where {
  select ?wd (count(?page) as ?count)
  where {
    # restrict to one item for testing
    ##bind(wd:Q33391 as ?wd)
    #
    ?wd wdt:P4293 ?pm20Id .
    #
    # get Wikipedia pages
    ?page schema:about ?wd .
  }
  group by ?wd
}