2018-07-14 1:40 GMT+02:00 Peter F. Patel-Schneider &lt;pfpschneider(a)gmail.com <mailto:pfpschneider@gmail.com>>: 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 <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. IIRC this is the complete list of property that are *only* qualifiers (that's why P580 and P580 are not in this list). Cdlt, ~nicolas _______________________________________________ Wikidata mailing list Wikidata(a)lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata

On Sat, Jul 14, 2018 at 1:42 AM Peter F. Patel-Schneider &lt;pfpschneider(a)gmail.com&gt; wrote: There is https://tools.wmflabs.org/sqid/#/browse?type=properties which might help you. Cheers Lydia

The list of props (4.9k) is returned quickly enough. Unfortunately it includes all props: each one has a wikibase:qualifier "just in case" select * { ?p wikibase:qualifier ?pq } It is a pity that this one times out, since the filter merely needs to look for 1 statement instance, 4.9k times: select * { ?p wikibase:qualifier ?pq filter exists {?x ?pq ?y} } limit 100 What query did you try? On Sat, Jul 14, 2018 at 2:40 AM, Peter F. Patel-Schneider &lt;pfpschneider(a)gmail.com&gt; wrote: