Listing Properties and Values of an Individual on Dbpedia

Question

How can I list properties with their values for any given DBpedia class? I'm new to this and have looked at several other questions on this but I haven't found exactly what I'm looking for.

What I'm trying to do is providing some relevant additional information to topics of conversation I have got from text mining. Say for example the topic of conversation in a certain community is iPhones. I would like to use this word to query the DBpedia page for this word, IPhone, to get an output such as:

Type: Smartphone
Operating System: IOS 
Manufacturer: Foxconn

EDIT:

Using the query from AKSW I can print the p (property?) and o (object?), although I'm still not getting the output I want. Instead of getting something like:

weight: 133.0

I get

http://dbpedia.org/property/weight:133.0

Is there a way to just get the name of the property instead of the DBpedia link?

My Code

Answer 1

As stated by AKSW properties often link to other classes rather than values. If you want all properties and their values, including other classes the the below gives you the label and filters by language (put the language code you need where have put "en").

SELECT DISTINCT ?label ?o
WHERE {
 <http://dbpedia.org/resource/IPhone> ?p ?o.
 ?p <http://www.w3.org/2000/01/rdf-schema#label> ?label .
FILTER(LANG(?label) = "" || LANGMATCHES(LANG(?label), "en"))
 }

If you don't want any properties that link to other classes, then you only want datatype properties so this code could help:

SELECT DISTINCT ?label ?o
WHERE {
 <http://dbpedia.org/resource/IPhone> ?p ?o.
 ?p <http://www.w3.org/2000/01/rdf-schema#label> ?label .
 ?p a owl:DatatypeProperty .
FILTER(LANG(?label) = "" || LANGMATCHES(LANG(?label), "en"))
 }

Obviously this gives you far less information and functionality, but it might just be what you're after?

Edit: In reply to your comment, it is also possible to get the labels for the values, using the same technique:

SELECT DISTINCT ?label ?oLabel
WHERE {
 <http://dbpedia.org/resource/IPhone> ?p ?o.
 ?p <http://www.w3.org/2000/01/rdf-schema#label> ?label .
 ?o <http://www.w3.org/2000/01/rdf-schema#label> ?oLabel
FILTER(LANG(?label) = "" || LANGMATCHES(LANG(?label), "en"))
 }

Note that http://www.w3.org/2000/01/rdf-schema#label is often shortened to rdfs:label by defining prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>

So you could also do:

prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> 

SELECT DISTINCT ?label ?oLabel
WHERE {
 <http://dbpedia.org/resource/IPhone> ?p ?o.
 ?p rdfs:label ?label .
 ?o rdfs:label ?oLabel
FILTER(LANG(?label) = "" || LANGMATCHES(LANG(?label), "en"))
 }

and get exactly the same result but possibly easier to read.

Answer 2

Classes do not "have" properties with values. Instances (resp. resources or individuals) do have a relationship via a property to some value which can be an individual itself or a literal (or some anonymous instance aka blank node). And instances belong to a class. e.g. Berlin belongs to the class City

What you want is to get all outgoing values of a given resource in DBpedia:

SELECT * WHERE { <http://dbpedia.org/resource/IPhone> ?p ?o }

Alternatively, you can use SPARQL DESCRIBE, which return the data in forms of an RDF graph resp. a set of RDF triples:

DESCRIBE <http://dbpedia.org/resource/IPhone>

This might also return incoming information because it's not really specified in the W3C recommendation what has to be returned.