TheUsualPrefixes
From W3C Wiki
TheUsualPrefixes are...
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix dc: <http://purl.org/dc/elements/1.1/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @orefix owl: <http://www.w3.org/2002/07/owl#> . @prefix vann: <http://purl.org/vocab/vann/>. @prefix cc: <http://web.resource.org/cc/>. @prefix vs: <http://www.w3.org/2003/06/sw-vocab-status/ns#> . @prefix wot: <http://xmlns.com/wot/0.1/>. @prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>. # much less common: @prefix inet: <http://www.w3.org/2001/02pd/rfc65#>. @prefix dca: <http://dublincore.org/2000/03/13-dcagent#>. @prefix uriReg: <http://www.w3.org/Addressing/schemes#>.
Edited to order by how often they are seen. RDQL reserves rdf:, rdfs:, xsd: and owl: Dave Beckett
JoshSled -- it'd sure be nice for something to generate this list based on vann:preferredNamespace{Uri,Prefix}...