protegeswrl

ParserException in Protege SWRL rule editor on swrlb:greaterThan

I am using Protege 4.3 and SWRL to make some rules with Pellet as a reasoner.

I am trying to use the SWRL builtins but i cannot make it work at all.

The rule is correct but Protege does not seem to recognise at all the builtin (e.g. swrlb:greaterThan)

Could you inform me on the process necessary to make Protege 4.3 identify the SWRL builtins?

Here is an example of a rule:

Asset(?p), id(?p, ?x), swrlb:greaterThan(?x, 10) -> State(?p)

My problem is that it doesn't seem to recognize at all the swrlb:greaterThan. The error says:

OWLRuntimeException: org.protege.editor.owl.model.classexpression.OWLExpressionParserException: Encountered swrlb:greaterThan at line 1 column 30.

Solution

  • In Protégé (4.2.0, anyways, but I'd expect the same is true for 4.3), you don't need to add the prefix swrlb: in the editor. Just use greaterThan. For instance, if you type this in the editor:

    rule editor

    you'll get:

    the rendered rule