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I ran queries to gain dates of instances of an incident, and used Point in Time (P585). Link

   SELECT DISTINCT ?incident ?label ?time WHERE {
   ?incident wdt:P31 wd:Q625994.
   ?incident rdfs:label ?label.
   ?incident wdt:P585 ?time.
   FILTER((LANG(?label)) = "en")
   }

However, result cases such as re:publica would only give me year information in the form of January 1, 2007 ~ 2016. (they occurred in April or May, and I would like more specific info like that)

Then I saw re:publica also has Start Dates & End Dates under Point in Time, per year. Therefore, I tried changing wdt:585 into wdt:580 (Start Dates), however, then I would not get re:publica in my results because apparently it is not considered to have 'start dates' if I query this way (because it is under Point in Time).

How do I get start time when Start Time is under Point in Time? Or, in general, how do I get certain info I want when it's under some other properties?

belle
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  • Working on it: for anyone with similar questions, [this link](https://en.wikibooks.org/wiki/SPARQL/WIKIDATA_Qualifiers,_References_and_Ranks) is helpful. – belle Mar 27 '19 at 12:35
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    yes, with the examples it's pretty simple. In addition, understanding the data model of Wikidata can be achieved by reading [this](https://www.mediawiki.org/wiki/Wikibase/DataModel/Primer) – UninformedUser Mar 27 '19 at 12:46

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