Re: [Wikidata-tech] Wikidata-tech Digest, Vol 62, Issue 2

Send Wikidata-tech mailing list submissions to wikidata-tech(a)lists.wikimedia.org To subscribe or unsubscribe via the World Wide Web, visit https://lists.wikimedia.org/mailman/listinfo/wikidata-tech or, via email, send a message with subject or body 'help' to wikidata-tech-request(a)lists.wikimedia.org You can reach the person managing the list at wikidata-tech-owner(a)lists.wikimedia.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Wikidata-tech digest..." Today's Topics: 1. Query data type using WDQS (Thad Guidry) 2. Re: Query data type using WDQS (Lucas Werkmeister) 3. Re: Query data type using WDQS (Thad Guidry) ---------------------------------------------------------------------- Message: 1 Date: Thu, 7 Jun 2018 10:01:10 -0500 From: Thad Guidry &lt;thadguidry(a)gmail.com&gt; To: Wikidata technical discussion &lt;wikidata-tech(a)lists.wikimedia.org&gt; Subject: [Wikidata-tech] Query data type using WDQS Message-ID: <CAChbWaPz-8bwyKbZF1pXfcB55= Mc3PDOcN_y3fRhMDH1H+39rw(a)mail.gmail.com&gt; Content-Type: text/plain; charset="utf-8" 1. Ok, after 1 hour, I have given up trying to find some good documentation on Data Type querying with Sparql and asking for assistance from experts. Many properties have a Data Type locked in with URL as shown on this Wiki maintenance page: https://www.wikidata.org/wiki/Category:Properties_with_url-datatype However, I don't quite understand how to get at the Data Type itself in Sparql ? https://query.wikidata.org/#%23Subproperties%20of%20URL%20%28P2699%29%0ASEL… 2. Should equivalent property < https://www.wikidata.org/wiki/Property:P1628> and equivalent class <https://www.wikidata.org/wiki/Property:P1709> both be a subproperty of URL (I have applied this assumption to both, but wondering if I might have missed some other way of expressing that or if not needed since the Data Type is set, but having difficulty querying that in 1.) I'm looking to query subjects having a statement where the property is a Data Type = URL and filtered by contains("world") (don't ask why, hahaha) Thanks in advance for direction and help, -Thad