SPARQL | Lib PHP for SPARQL | Data Manipulation library

I'm using Wikidata query service to obtain values and this is the code:

I am trying to retrieve samples of coordinates in Wikidata via SPARQL but am having a very difficult time trying to achieve it. I would want to get only a single pair of coordinates per place and display the result in a column, and the latitude and longitude of the said coordinates sample in their own columns.

The following code (link to WQS) I use below works, but it does not get the coordinates values labels in Point(5.936111111 51.21) format. When I replace p:P625 with wdt:P625, no items are retrieved. Additionally, Borculo (Q1025685) appears twice in the results with two unique coordinates:

How do I get the instance type(s) (i.e., property=P31 and associated labels) for multiple Wikidata IDs in a single query? Ideally, I want to output a list with the columns: Wikidata ID | P31 ID | P31 Label, with multiple rows used if a Wikidata ID has more than one P31 attached.

I am using the web query service, which works well in part, but I am struggling to understand the syntax. I have so far managed to work out how to process a list of items, and return each one as a row (simple I know!), but I can't work out how to generate a new column that gives the P31 item:

I'm using the Wikidata SPARQL Query Service with the following query:

I am trying to retrieve some municipalities from Wikidata using SPARQL but several items returned have much of their fields empty despite these items having these data. I do not understand what is wrong with the query below (link to WQS). For example, the municipality Almelo has its coordinates (P625), and parent place (P131) erroneously missing in the results:

Im a very beginner in sparql, just started doint it a couple hours ago. Howewer, after some practicing i don't know why the following query is not working:

I want to extract story plots from the English Wikipedia. I'm only looking for a few (~100) and the source of the plots doesn't matter, e.g. novels, video games, etc.

I briefly tried a few things that didn't work, and need some clarification on what I'm missing and where to direct my efforts. It would be nice if I could avoid manual parsing and could get just issue a single query.

This repo downloads the pages-articles dump, expands it using wikiextractor, then scans each article and saves the contents of each section whose title contains "plot". This is a heavy-handed method of achieving what I want, but I gave it a try and failed. I had to run wikiextractor inside Docker because there are known issues with Windows, and then wikiextractor failed because there is a problem with the --html flag.

I could probably get this working but it would take a lot of effort and there seemed like better ways.

I used the Wikidata SPARQL service and was able to get some queries working, but it seems like Wikidata only deals with metadata and relationships. Specifically, I was able to get novel titles but unable to get novel summaries.

In theory, DBpedia should be exactly what I want because it's "Wikipedia but structured", but they don't have nice tutorials and examples like Wikidata so I couldn't figure out how to use their SPARQL endpoint. Google wasn't much help either and seemed to imply that it's common to setup your own graph DB to query, which is beyond my scope.

This is a new query service that lets you query several Wikimedia databases. Sounds promising but I was again unable to grab content.

This SO answer says I can query PetScan to get Wikipedia titles, download HTML from Wikipedia.org, then parse that HTML. This sounds like it would work, but PetScan looks intimidating and this involves HTML parsing that I want to avoid if possible.

Imagine I would like to query all descendants of Otto Bismarck until generation 3. How could I write the sparql code with regex? In this tutorial it says that we can use regex but I don't know how.

I tried to use "{3}":

I have following concepts in turtle file. I would like to extract preferred label and ids for parent node (DOID_4159) and all its child from below concepts. I have written following SPARQL query to fetch the information, but it will not give all the child nodes.