I'm trying to get a good estimate of how often which qualifier predicate is used.
The obvious query times out, as expected, so I was trying to find a list of predicates that are used as qualifiers so that I can craft a query for each of them. There is https://www.wikidata.org/wiki/Wikidata:List_of_properties/Wikidata_qualifier but that can't be trusted as it doesn't include start time (P580) or end time (P582) which I expect to be the most common qualifier predicates.
So, I'm stumped. Any suggestions?
peter