prot-update-tcdb.rq

SELECT DISTINCT ?p ?u ?t ?stmt ?refdate
{
    ?p wdt:P352 ?u.
    OPTIONAL {
      ?p p:P7260 ?stmt.
      ?stmt ps:P7260 ?t.
      OPTIONAL {
        ?stmt (prov:wasDerivedFrom/pr:P813) ?refdate.
      }
    }
}