Does it work if you remove the second term which is - as I said - superflous?
> I am sorry if it still appears unclear. The rule seems ok as I have > discussed it with another person but why the error comes, dont know. > There are other generic rules which works fine but when I include this > rule, it gives error. > > On Thu, Mar 9, 2017 at 3:35 PM, kumar rohit <kumar.en...@gmail.com> wrote: > >> *This is print out of string.* >> >> *(?x http://www.w3.org/1999/02/22-rdf-syntax-ns#type >> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> >> http://www.semanticweb.org/t/ontologies#MasterStudent >> <http://www.semanticweb.org/t/ontologies#MasterStudent>) ( >> http://www.semanticweb.org/t/ontologies#MasterStudent >> <http://www.semanticweb.org/t/ontologies#MasterStudent>) >> http://www.w3.org/2000/01/rdf-schema#subClassOf >> <http://www.w3.org/2000/01/rdf-schema#subClassOf> >> http://www.semanticweb.org/t/ontologies#Student >> <http://www.semanticweb.org/t/ontologies#Student> ) -> (?x >> http://www.w3.org/1999/02/22-rdf-syntax-ns#type >> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> >> http://www.semanticweb.org/t/ontologies#Student >> <http://www.semanticweb.org/t/ontologies#Student> )] * >> >> On Thu, Mar 9, 2017 at 1:54 PM, Lorenz B. <buehm...@informatik.uni- >> leipzig.de> wrote: >> >>> No no no. Print the String of the rule to the command line and show this >>> one to us. >>> The current one isn't readable and can't be parsed for sure. And how >>> should #MasterStudent be resolved? >>> >>> And don't us such an old version of Jena! Version 3.2.0 is already >>> available. >>> >>>> The rule error is >>>> >>>> Exception in thread "AWT-EventQueue-0" >>>> com.hp.hpl.jena.reasoner.rulesys.Rule$ParserException: Triple with 1 >>> nodes! >>>> >>>> The rule is >>>> >>>> >>>> [rule1:(?x http://www.w3.org/1999/02/22-rdf-syntax-ns#type >>>> #MasterStudent) " >>>> >>>> + "(#MasterStudent http://www.w3.org/2000/01/ >>> rdf-schema#subClassOf >>>> #Student )" >>>> >>>> >>>> + " -> (?x http://www.w3.org/1999/02/22-rdf-syntax-ns#type >>>> #Student )]"; >>>> >>>> On Thu, Mar 9, 2017 at 11:46 AM, Lorenz B. < >>>> buehm...@informatik.uni-leipzig.de> wrote: >>>> >>>>> That doesn't solve your original problem, please provide the error! >>>>> >>>>> RDFS reasoning is enough to cover that kind if inference, please read >>>>> the documentation (as usual) [1] >>>>> >>>>> [1] https://jena.apache.org/documentation/inference/ >>>>>> Thanks a lot Dave, Lorenz, so it means I dont have to write these >>> rules >>>>> and >>>>>> it will be inferred automatically? How it will be executed,? I have >>>>> default >>>>>> model with no parameters and then the inferred model. >>>>>> Should I pass the "OntModelSpec.OWL_MEM_MICRO_RULE_INF " to the >>> default >>>>>> model? >>>>>> >>>>>> On Thu, Mar 9, 2017 at 10:14 AM, Lorenz B. < >>>>>> buehm...@informatik.uni-leipzig.de> wrote: >>>>>> >>>>>>> 1. That rule is unreadable again - at least for me. See how it is >>> shown >>>>>>> to the mailing list: http://jena.markmail.org/threa >>> d/akjkia6mysqhsq2i >>>>>>> 2. Don't show the Java concatenated string but the rule as it's >>> printed >>>>>>> to the command line/console. Especially hereby one can see trivial >>>>>>> syntax errors >>>>>>> 3. As Dave said, it's totally unclear why you're always omitting >>> obvious >>>>>>> details - what kind of exception? >>>>>>> 4. The rule doesn't make sense, since the second term of the premise >>>>>>> doesn't contain any variable. It's not clear what you want to achieve >>>>> here. >>>>>>> (?x rdf:type :MasterStudent ) (:MasterStudent rdfs:subClassOf >>> :Student ) >>>>>>> -> (?x rdf:type :Student ) >>>>>>> >>>>>>> That rule would be covered by the rdf:type/rdfs:subClassOf rule in >>> RDFS: >>>>>>> (?x rdf:type ?C) (?C rdfs:subClassOf ?D) -> (?x rdf:type ?D) >>>>>>> >>>>>>> But in your rule the second term doesn't contribute to the reasoning >>>>>>> process. The result would be the same with >>>>>>> >>>>>>> (?x rdf:type :MasterStudent ) -> (?x rdf:type :Student ) >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>> On 08/03/17 13:29, kumar rohit wrote: >>>>>>>>> Is there any problem in this rule. I am getting error here. >>>>>>>> What error? >>>>>>>> >>>>>>>> It is much easier for us to help if you say explicitly what went >>> wrong! >>>>>>>>> I used jena >>>>>>>>> generic rule reasoner so is it sufficient also for executing rdfs >>> sub >>>>>>>>> class >>>>>>>>> rules? >>>>>>>>> >>>>>>>>> *[rule1:(?x http://www.w3.org/1999/02/22-rdf-syntax-ns#type >>>>>>>>> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> >>>>>>>>> http://www.semanticweb.org/t/ontologies#MasterStudent >>>>>>>>> <http://www.semanticweb.org/t/ontologies#MasterStudent>) "* >>>>>>>>> * + "( http://www.semanticweb.org/t/o >>> ntologies#MasterStudent >>>>>>>>> <http://www.semanticweb.org/t/ontologies#MasterStudent>) >>>>>>>>> http://www.w3.org/2000/01/rdf-schema#subClassOf >>>>>>>>> <http://www.w3.org/2000/01/rdf-schema#subClassOf> >>>>>>>>> http://www.semanticweb.org/t/ontologies#Student >>>>>>>>> <http://www.semanticweb.org/t/ontologies#Student> )"* >>>>>>>>> >>>>>>>>> >>>>>>>>> * + " -> (?x http://www.w3.org/1999/02/22- >>>>>>> rdf-syntax-ns#type >>>>>>>>> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> >>>>>>>>> http://www.semanticweb.org/t/ontologies#Student >>>>>>>>> <http://www.semanticweb.org/t/ontologies#Student> )]"* >>>>>>>> Almost impossible to read but at a glance it looks OK. >>>>>>>> >>>>>>>> 1. Please post messages as plain text. Your emailer has done horrid >>>>>>>> things to the URIs. >>>>>>>> >>>>>>>> 2. The rule would be much easier to read if you use prefixes instead >>>>>>>> of writing out the URIs longhand. >>>>>>>> >>>>>>>> 3. It's also possible to use the standard generic RDFS rules. You >>>>>>>> don't have to write out your own special case rules for each >>>>>>>> subClassOf relationship. >>>>>>>> >>>>>>>> Dave >>>>>>>> >>>>>>>> >>>>>>> -- >>>>>>> Lorenz Bühmann >>>>>>> AKSW group, University of Leipzig >>>>>>> Group: http://aksw.org - semantic web research center >>>>>>> >>>>>>> >>>>>>> >>>>> -- >>>>> Lorenz Bühmann >>>>> AKSW group, University of Leipzig >>>>> Group: http://aksw.org - semantic web research center >>>>> >>>>> >>> -- >>> Lorenz Bühmann >>> AKSW group, University of Leipzig >>> Group: http://aksw.org - semantic web research center >>> >>> -- Lorenz Bühmann AKSW group, University of Leipzig Group: http://aksw.org - semantic web research center
