query: SELECT DISTINCT ?item {
    SERVICE wikibase:mwapi {
        bd:serviceParam wikibase:api "EntitySearch" .
        bd:serviceParam wikibase:endpoint "www.wikidata.org" .
        bd:serviceParam mwapi:search "Thomas Müller" .
        bd:serviceParam mwapi:language "en" .
        ?item wikibase:apiOutputItem mwapi:item .
    }
    ?item wdt:P569 ?dateOfBirth .
    FILTER(DAY(?dateOfBirth) = 13 && MONTH(?dateOfBirth) = 9) .
  }