Hi, could you help me on a problem i still stuck on ?
I've got an FOAF ontology merged with another one : photography.
People are linked with a "figureOnImage" object property and I
want to infere that they know (FOAF:Knows : object Property) each other.
1 - question :
With the rules files :
@prefix foaf: <http://xmlns.com/foaf/0.1/knows#>. (or @prefix
foaf: <http://xmlns.com/foaf/0.1#>.) same
@prefix exif: <http://www.w3.org/2003/12/exif/ns#>.
@prefix photo:
<http://www.photographyontology.org.uk/ontologies/photography/photography.owl#>.
[rule1: (?f photo:figureOnImage ?a) (?g photo:figureOnImage ?a) -> (?f
foaf:knows ?g) (?g foaf:knows ?f)]
[cid:[email protected]]
Result seems to be correct except that each people knows himself (not wrong ;o)
) but I would understand it with a rule like :
[rule1: (?f photo:figureOnImage ?a) (?g photo:figureOnImage ?a) -> (?f
foaf:knows ?f) ]
What's wrong with my rules ?
2 - question : I try to link
two persons with an "FOAF:knows" object property and not with an annotation.
How can I infer and use object properties ?
Thanks
Regards
Wilfrid Tourigny
Screenshots for question 1 :
[cid:[email protected]]
[cid:[email protected]]
Result expected in Question 2 :[cid:[email protected]]
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