@prefix : <http://linkedspending.aksw.org/ontology/>.
@prefix qb: <http://purl.org/linked-data/cube#>.
@prefix xsd: <http://www.w3.org/2001/XMLSchema#>.
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>.
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix sdmx-attribute:  <http://purl.org/linked-data/sdmx/2009/attribute#> .
@prefix sdmx-concept:    <http://purl.org/linked-data/sdmx/2009/concept#> .
@prefix dbo: <http://dbpedia.org/ontology/>.

:transformationVersion a rdf:Property;
	rdfs:label "transformation version"@en;
	rdfs:comment "the transformation version is used to detect outdated datasets that must be retransformed because of changes in the modelling."@en; 
	rdfs:domain qb:DataSet;
	rdfs:range xsd:positiveInteger.

:sourceCreated a rdf:Property;
	rdfs:label "source data creation date"@en;
	rdfs:domain qb:DataSet;
	rdfs:range xsd:dateTime.

:sourceModified a rdf:Property;
	rdfs:label "source data modification date"@en;
	rdfs:domain qb:DataSet;
	rdfs:range xsd:dateTime.

:CountryComponentSpecification	a qb:ComponentSpecification;
				rdfs:label "country";
				rdfs:comment "The country a dataset references."@en;
				qb:attribute sdmx-attribute:refArea; 
				qb:componentRequired "false"^^xsd:boolean;
				qb:componentAttachment qb:DataSet,qb:Observation.

:DateComponentSpecification	a qb:ComponentSpecification;
				rdfs:label "time";
				qb:dimension :refDate;
				qb:componentRequired "false"^^xsd:boolean.
				
:YearComponentSpecification	a qb:ComponentSpecification;
				rdfs:label "year";
				qb:dimension :refYear;
				qb:componentAttachment qb:DataSet,qb:Observation;
				qb:componentRequired "false"^^xsd:boolean.

:CurrencyComponentSpecification	a qb:ComponentSpecification;
				rdfs:label "currency";
				qb:attribute dbo:currency;
				qb:componentRequired "true"^^xsd:boolean;
				qb:componentAttachment qb:Observation.
				
:refDate a rdf:Property,qb:DimensionProperty;
	rdfs:subPropertyOf sdmx-concept:refPeriod;
	rdfs:label "reference date";
	rdfs:comment "the date an observation refers to";
	rdfs:domain qb:Observation;
	rdfs:range xsd:date. 

:refYear a rdf:Property,qb:DimensionProperty;
	rdfs:subPropertyOf sdmx-concept:refPeriod;
	rdfs:label "reference year";
	rdfs:comment "the year an observation refers to";
	rdfs:domain qb:Observation;
	rdfs:range xsd:gYear. 

dbo:currency rdfs:range dbo:Currency.

sdmx-attribute:refArea rdfs:range <http://linkedgeodata.org/ontology/Country>.