# tfs.sparql - TF generic description query template (SPARQL engine)

PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX owl:  <http://www.w3.org/2002/07/owl#> 
PREFIX ont:  <http://grapson.com/concept#> 
PREFIX term:  <http://grapson.com/term#> 
PREFIX meta:  <http://grapson.com/meta#> 
PREFIX exp:  <http://grapson.com/expression#> 

CONSTRUCT { 
           ?INST ?prop ?obj .
           ?uri owl:versionInfo ?info . 
}
WHERE {
       { ?INST ?prop ?obj . }
       UNION { ?obj ?invp ?INST .
         ?invp owl:inverseOf ?prop .
       }
       OPTIONAL { ?uri owl:versionInfo ?info . 
       } .	
}