@Daniel_Mietchen submitted this query:
SELECT DISTINCT ?item ?pubyear WHERE { ?item wdt:P577 ?pubdate; wdt:P31 wd:Q13442814. BIND(year(?pubdate) AS ?pubyear). MINUS { ?item schema:description ?itemDescription. } } LIMIT 10
Currently, it returns these results:
- wd:Q23793176
- wd:Q23793177
- wd:Q24247180
- wd:Q28172728
- wd:Q28179454
- wd:Q28157264
- wd:Q28157307
- wd:Q28157351
- wd:Q28157497
- wd:Q28158074
The first two items have been deleted, the rest are redirects. As far as I know, WDQS isn’t supposed to return deleted items at all, and redirects should only appear when explicitly selected with owl:sameAs, so I assume this must be stale data.
This may be a dupe of T136393, and I suppose T153513 would resolve this issue.