# RDF Schema (RDFS)

    @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>

## Classes

Class, Datatype, Literal, Resource

## Class Details

### Class

##### Description

The class of classes

### Specification

https://www.w3.org/TR/rdf-schema/#ch_class

#### Class hierarchy

    rdfs:Resource
    ╰── rdfs:Class
        ╰── rdfs:Datatype

#### Predefined instances

rdfs:Class has the following predefined instances:

- nrl:Ontology
- nrl:Namespace
- nrl:InverseFunctionalProperty
- rdfs:Datatype
- rdfs:Literal
- rdfs:Class
- rdfs:Resource
- rdf:List
- rdf:langString
- rdf:Property
- xsd:dateTime
- xsd:date
- xsd:double
- xsd:integer
- xsd:boolean
- xsd:string

#### Properties

Name | Type | Notes | Description
--- | --- | --- | ---
classSpecification | string |  | Link to upstream specification for an ontology class. This is a Tracker extension
domainIndex | Property |  | Property is a domain index for the subject class. This is a Tracker extension
notify | boolean |  | Whether resources of this class emits notifications on changes. This is a Tracker extension
subClassOf | Class |  | The subject is a subclass of a class

### Datatype

##### Description

The class of RDF datatypes.

### Specification

https://www.w3.org/TR/rdf-schema/#ch_datatype

#### Class hierarchy

    rdfs:Resource
    ╰── rdfs:Class
        ╰── rdfs:Datatype

#### Predefined instances

rdfs:Datatype has the following predefined instances:

- rdf:langString

### Literal

##### Description

The class of literal values, eg. textual strings and integers

### Specification

https://www.w3.org/TR/rdf-schema/#ch_literal

#### Class hierarchy

    rdfs:Resource
    ╰── rdfs:Literal
        ╰── rdf:langString

### Resource

##### Description

All resources

### Specification

https://www.w3.org/TR/rdf-schema/#ch_resource

#### Class hierarchy

    rdfs:Resource
    ├── rdfs:Literal
    ├── rdfs:Class
    ├── rdf:Property
    ├── rdf:List
    ├── nrl:Ontology
    ╰── nrl:Namespace

#### Predefined instances

rdfs:Resource has the following predefined instances:

- dc:
- dc:rights
- dc:coverage
- dc:relation
- dc:language
- dc:source
- dc:identifier
- dc:format
- dc:type
- dc:date
- dc:contributor
- dc:publisher
- dc:description
- dc:subject
- dc:creator
- dc:title
- nrl:
- nrl:propertySpecification
- nrl:classSpecification
- nrl:deprecated
- nrl:notify
- nrl:modified
- nrl:added
- nrl:weight
- nrl:fulltextIndexed
- nrl:secondaryIndex
- nrl:indexed
- nrl:domainIndex
- nrl:prefix
- nrl:lastModified
- nrl:Ontology
- nrl:Namespace
- nrl:maxCardinality
- nrl:InverseFunctionalProperty
- fts:
- tracker:
- rdfs:
- rdfs:range
- rdfs:domain
- rdfs:label
- rdfs:comment
- rdfs:subPropertyOf
- rdfs:subClassOf
- rdfs:Datatype
- rdfs:Literal
- rdfs:Class
- rdfs:Resource
- rdf:nil
- rdf:
- rdf:rest
- rdf:first
- rdf:List
- rdf:type
- rdf:langString
- rdf:Property
- xsd:
- xsd:dateTime
- xsd:date
- xsd:double
- xsd:integer
- xsd:boolean
- xsd:string

#### Properties

Name | Type | Notes | Description
--- | --- | --- | ---
contributor | string |  | An entity responsible for making contributions to the resource.
coverage | string |  | The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant.
creator | string |  | An entity primarily responsible for making the resource.
date | dateTime |  | A point or period of time associated with an event in the lifecycle of the resource.
description | string |  | An account of the resource.
format | string |  | The file format, physical medium, or dimensions of the resource.
identifier | string |  | An unambiguous reference to the resource within a given context.
language | string |  | A language of the resource.
publisher | string |  | An entity responsible for making the resource available.
relation | string |  | A related resource.
rights | string |  | Information about rights held in and over the resource.
source | Resource |  | A related resource from which the described resource is derived.
subject | string |  | The topic of the resource.
title | string |  | A name given to the resource.
type | string |  | The nature or genre of the resource.
added | dateTime |  | Time of insertion of the resource. This is a Tracker extension
deprecated | boolean |  | If this property is assigned, the subject class, property, or resource, is deprecated and should not be used in production systems any longer. It may be removed without further notice. This property is a Tracker extension
modified | integer |  | Modification sequence number. This is a Tracker extension
type | Class |  | The subject is an instance of a class
comment | string |  | A description of the subject resource
label | string |  | A human-readable name for the subject

## Credits and Copyright

Authors:

- W3C

Editors:

- Tracker developers (translation into turtle)

Upstream: Not available

ChangeLog: Tracker changes

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