Thanks Soroka. I do not know how to use* greaterThan(?x, ?y) here in my case? How can I compare the marks data property with this?*
On Tue, Sep 6, 2016 at 12:09 PM, A. Soroka <aj...@virginia.edu> wrote: > https://jena.apache.org/documentation/inference/index.html#RULEbuiltins > > --- > A. Soroka > The University of Virginia Library > > > On Sep 6, 2016, at 3:05 PM, javed khan <javedbtk...@gmail.com> wrote: > > > > I have *Student* class, having *ExcellentStudents* and *PoorStudents* as > > subclasses. > > My ontology contains Student *marks* (*marks is data property*) and based > > on marks students can be assigned to ExcellentStudents and PoorStudents. > > > > My requirements is to achieve it using Jena rules. I need some help in > > getting to this. I want something like : > > > > If Student X marks>60, assign Student X to ExcellentStudent class else > > assign to PoorStudents class. I have attempted the following but could > not > > succeeded. > > > > > > String rule = "[rule1:"(?x > > http://www.w3.org/1999/02/22-rdf-syntax-ns#type > > http://www.owlontologies.com/Student.owl#*Student*)+ > > > > (?x http://www.owl-ontologies.com/Student.owl#marks *>60*)" + > > > > > > "->(?x http://www.w3.org/1999/02/22-rdf-syntax-ns#type > > http://www.owlontologies.com/Student.owl#*ExcellentStudent*)]"; > > > > > > I think the problem will be in marks>60 because I do not know how to > > compare things inside Jena rules. > >
