The query will give you the article pageID where a sound is embedded, in your 
case the one of dbr:1984_Summer_Olympics (pageID 82762), 
dbr:1984_Summer_Olympics__1 is an intermediate node without pageID.

The actually referenced file is 
https://en.wikipedia.org/wiki/File:John_Williams_Olympic_Theme.ogg or 
http://dbpedia.org/resource/File:John_Williams_Olympic_Theme.ogg having pageID 
4259001.
The link between dbr:1984_Summer_Olympics and 
dir:File:John_Williams_Olympic_Theme.ogg is not mapped.

You might also be interested in the DBpedia Commons, which contains all 
resources from Wikimedia Commons including images, videos and sound: 
http://commons.dbpedia.org/
Unfortunately, not all media files are in Commons, non-free media (such as 
John_Williams_Olympic_Theme.ogg) is kept in language specific Wikipedias.
But, a link dataset between DBpedia resources and media items in DBpedia 
Commons will be provided with the next DBpedia release.

> Am 29.07.2016 um 21:08 schrieb Joakim Soderberg 
> <joakim.soderb...@blippar.com>:
> 
> That is what I was looking for. 
> 
> Thanks
> 
>> On Jul 29, 2016, at 2:17 AM, Wojtek Lukasiewicz <woj.lu...@gmail.com> wrote:
>> 
>> Hello,
>> 
>> how about asking
>> ?page dbo:soundRecording db:1984_Summer_Olympics__1,
>> and then just ?page dbo:wikiPageID ?pageID
>> 
>> or more general
>> select ?soundRec ?pageID
>> where {
>> ?soundRec a dbo:Sound .
>> ?page dbo:soundRecording ?soundRec .
>> ?page dbo:wikiPageID ?pageID
>> }
>> 
>> Best,
>> Wojtek
>> 
>> On Fri, Jul 29, 2016 at 3:04 AM, Joakim Soderberg 
>> <joakim.soderb...@blippar.com> wrote:
>> Hi,
>> 
>> Is there a way to find the wikipediaId from an entity of type dbo:Sound, 
>> e.g. ?entity a duo:Sound
>> 
>> For example 1984_Summer_Olympics__1 has the following statements
>> 
>> 
>> dbo:description composed byJohn Williamsfor the 1984 Summer Olympics in Los 
>> Angeles and performed by theBoston Pops Orchestra
>> dbo:filename    John Williams Olympic Theme.ogg
>> dbo:title       "Olympic Fanfare and Theme"
>> rdf:type        dbo:Sound
>> rdf:type        owl:Thing
>> rdf:type        dbo:Document
>> rdf:type        dbo:Work
>> rdf:type        schema:CreativeWork
>> rdf:type        <http://www.wikidata.org/entity/Q386724>
>> rdf:type        foam:Document
>> 
>> 
>> but no information of an associated wikipedia article.
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> 
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-- 
Magnus Knuth

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