Built-in model terms

Model ontologies described here, as well as some other system and well-known ontologies, have a local copy in each LinkedDataHub instance. The URI-to-file mapping is defined as Jena's location mapping and can be found in location-mapping.n3 and prefix-mapping.n3.

Built-in classes
Ontology	Class	Subclass of	Path	Fragment	Constructor	Constrained properties
`ldh:`	`ldh:Dataset`	`void:Dataset`,`sd:Graph`	`{isPrimaryTopicOf.slug}/`	`this`
	`ldh:NamedGraph`	`sd:NamedGraph`
	`ldh:Construct`	`ldt:Query`,`sp:Construct`	`{isPrimaryTopicOf.slug}/`	`this`	`ldh:QueryConstructor`	`sp:text`
	`ldh:File`	`dh:Item`,`nfo:FileDataObject`			`ldh:FileConstructor`	`nfo:fileName`
	`ldh:Import`	`prov:Activity`	`{isPrimaryTopicOf.slug}/`	`this`	`ldh:ImportConstructor`	`ldh:action`
	`ldh:CSVImport`	`ldh:Import`	`{isPrimaryTopicOf.slug}/`	`this`	`ldh:FileConstructor`	`spin:query`
	`ldh:CSVImport`	`ldh:Import`	`{isPrimaryTopicOf.slug}/`	`this`	`ldh:FileConstructor`	`ldh:delimiter`
	`ldh:Chart`		`{isPrimaryTopicOf.slug}/`	`this`	`ldh:ChartConstructor`	`spin:query`
						`ldh:endpoint`
						`ldh:chartType`
	`ldh:GraphChart`	`ldh:Chart`			`ldh:GraphChartConstructor`	`ldh:seriesProperty`
	`ldh:GraphChart`	`ldh:Chart`			`ldh:GraphChartConstructor`	`ldh:categoryProperty`
	`ldh:ResultSetChart`	`ldh:Chart`			`ldh:ResultSetChartConstructor`	`ldh:seriesVarName`
	`ldh:ResultSetChart`	`ldh:Chart`			`ldh:ResultSetChartConstructor`	`ldh:categoryVarName`
`dh:`	`dh:Document`	`foaf:Document`	`{slug}/`		`dh:DocumentConstructor`
	`dh:Container`	`dh:Document`,`dh:Container`			`dh:ContainerConstructor`
	`dh:Item`	`dh:Document`,`dh:Item`

The constructor SPARQL query strings can be looked up in the RDF documents of the respective ontologies.