owl:Thing

From OWL Test Cases

Jump to:navigation, search

The syntactic element owl:Thing belongs to the RDF/XML serialization of OWL 2.

Tests using this feature

This section lists test that are using this feature (refresh view)info.pngQuery results are cached with wiki pages for some time, even if the data changes. This link purges a page's cache to get the most recent results.

There are 85 approved test cases that currently use this feature:

author description
Bnode2somevaluesfrom Bijan Parsia Shows that a BNode is an existential variable.
Consistent-but-all-unsat Uli Sattler An ontology that is consistent, but all named classes are unsatisfiable. Ideas by Alan Ruttenberg
New-Feature-BottomObjectProperty-001 Mike Smith Demonstrates use of the bottom object property to create an inconsistency.
New-Feature-Keys-001 Mike Smith Demonstrates use of a key axiom to merge individuals based on an example in the Structural Specification and Functional-Style Syntax document.
New-Feature-Keys-002 Mike Smith Demonstrates use of a key axiom to cause a trivial inconsistency based on an example in the Structural Specification and Functional-Style Syntax document.
… further results


There are 21 proposed test cases that currently use this feature:

author description
Owl2-rl-rules-ifp-askey Zhe Wu Use inverse functional property as key.
TestCase:WebOnt-Class-005 Jeremy J. Carroll This test shows a potential misapplication of OWL Full comprehension rules. It also shows optional type triples on an owl:Class.
TestCase:WebOnt-Class-005-direct Jeremy J. Carroll This test demonstrates that the OWL 2 Direct Semantics, unlike the OWL 2 RDF Based Semantics and the OWL 1 semantics, permit URIs to be present in the conclusion ontology that are not present in the premise ontology.
TestCase:WebOnt-Class-006 Jeremy J. Carroll This test shows a correct application of OWL Full comprehension rules.

It also shows that use of rdfs:Class instead of owl:Class

may make a file fall outside OWL DL.
TestCase:WebOnt-FunctionalProperty-005 Peter F. Patel-Schneider If prop belongs to owl:FunctionalProperty then an OWL individual has at most one value for prop.
… further results


There are 2 newly submitted test cases that currently use this feature:

author description
Direct Semantics Literal disjoint from Thing Alan Ruttenberg A test demonstrating that literals are disjoint from Thing in the direct semantics. See thread at http://lists.w3.org/Archives/Public/semantic-web/2010Oct/0116.html. The following ontology, which is consistent according to the Direct Semantics, demonstrates that literals are not OWL things. In it, owl:Thing is an enumerated class containing at most 2 individuals. One of those individuals has three data property literal values 42,43,44 ^xsd:integer. If the literals were instance of owl:Thing, this ontology would be inconsistent as there can be only two distinct members of owl:Thing, but there are three distinct literals. On the date this test was entered, Pellet and Fact+ correctly determined that the ontology is consistent and Hermit acknowledged that while it found the ontology inconsistent, this was a bug.
RoleChainViolationLumen Uli Sattler This is an example that was developed by Uli Sattler for a workshop on the Foundational Model of Anatomy. As it turns out, the role chain it uses violates the constraints for being allowable in OWL 2 DL. Submitted by Alan Ruttenberg. See http://groups.google.com/group/fma-owl-2009/browse_thread/thread/4643f80187bf9327
Navigation
OWL 2 Informative
OWL 2 Normative
Toolbox