@prefix dbo:	<http://dbpedia.org/ontology/> .
@prefix dbr:	<http://dbpedia.org/resource/> .
dbr:Marshall_McLuhan	dbo:wikiPageWikiLink	<http://dbpedia.org/resource/File:MediaTetrad.svg> .
dbr:Media_ecology	dbo:wikiPageWikiLink	<http://dbpedia.org/resource/File:MediaTetrad.svg> .
dbr:Tetrad_of_media_effects	dbo:wikiPageWikiLink	<http://dbpedia.org/resource/File:MediaTetrad.svg> .
@prefix owl:	<http://www.w3.org/2002/07/owl#> .
<http://dbpedia.org/resource/File:MediaTetrad.svg>	owl:sameAs	<http://dbpedia.org/resource/File:MediaTetrad.svg> .