- From: Chuming Chen <chen@musc.edu>
- Date: Sun, 19 Mar 2006 12:18:21 -0500
- To: "Peter F. Patel-Schneider" <pfps@research.bell-labs.com>
- CC: semantic-web@w3.org
Peter F. Patel-Schneider wrote: >From: Chuming Chen <chen@musc.edu> >Subject: BNodes in OWL >Date: Wed, 01 Mar 2006 23:13:52 -0500 > > > >>Dear All, >> >>Is it possible to have BNodes in OWL? >> >>Can anybody give an example or point some references? >> >>Thanks, >> >>Chuming Chen >> >> >> > >If you mean in OWL Full, any RDF graph is a valid OWL Full graph, blank nodes >and all. > >If you mean OWL DL or OWL Lite, then blank nodes (or, at least, something that >would translate into blank nodes) are allowed in certain places, the most >interesting being in the Individual construct. In OWL DL and OWL Lite it is >possible to leave out the ID in an Individual construct, so in addition to >being able to say that John is a Person, via > > Individual(John type(Person)) > >you can also say that some object is a Person, via > > Individual(type(Person)) > >this anonymous object is just like a blank node. > >Look in the S&AS document > OWL Web Ontology Language > Semantics and Abstract Syntax > http://www.w3.org/TR/2004/REC-owl-semantics-20040210/ >for more information. > > >Peter F. Patel-Schneider > > > > > In this case, how can we determine those blank nodes are equivalent when they appear in two OWLs? Thanks, Chuming Chen
Received on Sunday, 19 March 2006 17:18:54 UTC