editorial change to RDF-Based Semantics: correction of grammar

Hi!

Just for the record (it's trivial editorial, but since we are in PR...): I have slightly updated the introduction section of the RDF-Based Semantics in order to fix a few problems regarding punctuation and word order:

  <http://www.w3.org/2007/OWL/wiki/index.php?title=RDF-Based_Semantics&diff=25950&oldid=25949>

So this was (hopefully!) my final edit. :-)

Cheers,
Michael

--
Dipl.-Inform. Michael Schneider
Research Scientist, Dept. Information Process Engineering (IPE)
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Email: michael.schneider@fzi.de
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