On Wed, 25 Mar 2009 10:03:43 -0700, Oliver Ruebenacker <cur...@gmail.com>
wrote:
http://www.uniprot.org/tissues/229 (subject)
http://www.w3.org/2002/07/owl#sameAs (predicate)
http://purl.uniprot.org/po/0009009 (object)
my concern is whether http://purl.uniprot.org/po/0009009 is intended to
be a
class, or intended to be an instance... since owl:sameAs is only
supposed to
be used to claim the "identicalness" of two individuals, not an
individual
to a class...
Must be an individual, then, doesn't it?
Well, the statement would *imply* that it is... so given that the
individual "embryo" that was referred to as a uniprot tissue is the same
individual "embryo" that the plant ontology was talking about, we can
therefore conclude that (as Ben pointed-out) that this particular fly
embryo is somehow embedded in some particular plant seed endosperm.
Lovely...
the problem with owl:sameAs is that it is much more rigourous than most of
our ontologies are! I don't think we need to throw it away, but we need
to be ACUTELY aware of what it MEANS, and only use it in those VERY rare
cases where we are saying that "Bill Clinton" is owl:sameAs "William
Jefferson Clinton" (the example from the OWL spec)
M
--
Mark D Wilkinson, PI Bioinformatics
Assistant Professor, Medical Genetics
The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research
Providence Heart + Lung Institute
University of British Columbia - St. Paul's Hospital
Vancouver, BC, Canada
