- From: Alan Ruttenberg <alanruttenberg@gmail.com>
- Date: Sun, 10 May 2009 14:25:21 -0400
- To: W3C OWL Working Group <public-owl-wg@w3.org>
- Message-ID: <29af5e2d0905101125u60cbbfc9ja397684f867208f8@mail.gmail.com>
Report courtesy of Melanie Courtot. -Alan ---------- Forwarded message ---------- From: Melanie Courtot <mcourtot@gmail.com> Subject: tiny typo? In the example: 9.3.1 Data Subproperties ... Consider the ontology consisting of the following axioms. SubDataPropertyOf( a:hasLastName a:hasName ) A last name of someone is his/her name as well. DataPropertyAssertion( a:hasLastName a:Peter "Griffin" ) Peter's last name is "Griffin". RDF: a:hasLastName rdfs:subPropertyOf a:hasName . A last name of someone is his/her name as well. a:Peter a:hasLastName "Griffin" . Peter's last name is "Griffin ". Since a:hasLastName is a subproperty of a:hasName, each individual connected by the former property to a literal is also connected by the latter property to the same literal. Therefore, this ontology entails that a:Peter is connected to "Peter" through a:hasName; that is, the ontology entails the following assertion: DataPropertyAssertion( a:hasName a:Peter "Peter" ) Should be, as the literal used in the above declaration is "Griffin" and not "Peter": Since a:hasLastName is a subproperty of a:hasName, each individual connected by the former property to a literal is also connected by the latter property to the same literal. Therefore, this ontology entails that a:Peter is connected to "Griffin" through a:hasName; that is, the ontology entails the following assertion: DataPropertyAssertion( a:hasName a:Peter "Griffin" )
Received on Sunday, 10 May 2009 18:26:17 UTC