03_findAllConceptsAndTheirConceptSchemes.sparql

#This query will return all the concepts in the graph and the Concept Scheme to which they belong

PREFIX skos: <http://www.w3.org/2004/02/skos/core#>

#Return a table of the Concept names and their correpsonding ConceptScheme names. (uris for each are commented out, but can be un-commented for checking)
SELECT 
    #?concepturi 
    ?preflabel 
    ?schemename 
    #?inscheme

WHERE {
#find concepts in the graph, their names, and the inScheme they are included in
?concepturi a skos:Concept ;
skos:prefLabel ?preflabel ;
skos:inScheme ?inscheme .

#find conceptSchemes in the graph and their names
?schemeuri a skos:ConceptScheme ;
    skos:prefLabel ?schemename .

#join concepts (concepturi) to their conceptschemes, based on the inScheme declaration, i.e. the matching schemeuri to the included skos:inScheme for each concepturi
?concepturi skos:inScheme ?schemeuri .

#Apply a filter to English Language tags only on concept labels
FILTER(LANG(?preflabel)="en")
}

#alphabetical order of conceptScheme labels
ORDER BY ?schemename