A new conversation because I can not add a new to the previous.
@Boris, Yes, sometimes even inference within TB Composer is complex.
So I hoped pyshacl is an alternative. But a minimal running example does
not give inferred triples; sorry to be a hard learner. Here I try to infer
keyWords for schema:Avatar.
Python code
---------------------------------------------------------------------
from rdflib import Graph, URIRef
from pyshacl import validate
shapes = Graph()
shapes.parse('testshapes.ttl', format='ttl')
data_graph = Graph()
data_graph.parse('testdata.ttl', format='ttl')
data_graph_orig = Graph()
for t in data_graph:
data_graph_orig.add(t)
r = validate(data_graph,
shacl_graph=shapes,
#ont_graph=og,
inference='rdfs',
abort_on_error=False,
meta_shacl=True,
advanced=True,
js=False,
debug=True)
conforms, results_graph, results_text = r
added_triples = data_graph - data_graph_orig
print('Added triples: ', len(added_triples))
print(added_triples.all_nodes())
Data
-----------------------------------------------------
@prefix schema: <http://schema.org/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix : <http://example.org#>.
:movies a owl:Ontology ;
owl:imports schema: .
:Avatar a schema:Movie ;
schema:actor :Sam .
Shapes:
------------------------------------------------------
@prefix sh: <http://www.w3.org/ns/shacl#>.
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix schema: <http://schema.org/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
@prefix : <http://example.org#>.
:movieOntology
a owl:Ontology ;
owl:imports schema: ;
owl:imports sh: ;
owl:imports xsd: ;
sh:declare
[ sh:prefix "sh" ;
sh:namespace "http://www.w3.org/ns/shacl#"^^xsd:anyURI ; ] ,
[ sh:prefix "schema" ;
sh:namespace "http://schema.org/"^^xsd:anyURI ;] ,
[ sh:prefix "owl" ;
sh:namespace "http://www.w3.org/2002/07/owl#"^^xsd:anyURI ; ]
.
:keywordsRule
a sh:NodeShape ;
sh:targetClass schema:Movie ;
sh:rule [
a sh:SPARQLRule ;
sh:prefixes schema: ;
sh:construct """
CONSTRUCT {
$this schema:keyWords ?actor .
}
WHERE {
$this schema:actor ?actor .
}
""" ;
] ;
.
Regards,
Richard
--
http://github.com/RDFLib
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