Slot: prefix_reference
The namespace to which a prefix expands to.
URI: [sh:namespace](http://www.w3.org/ns/shacl#namespace)
## Applicable Classes
| Name | Description | Modifies Slot |
| --- | --- | --- |
| [Prefix](Prefix.md) | prefix URI tuple | no |
## Properties
### Type and Range
| Property | Value |
| --- | --- |
| Range | [Uri](Uri.md) |
| Domain | [Prefix](Prefix.md) |
| Domain Of | [Prefix](Prefix.md) |
| Slot URI | [sh:namespace](http://www.w3.org/ns/shacl#namespace) |
### Cardinality and Requirements
| Property | Value |
| --- | --- |
| Required | Yes |
## In Subsets
* [SpecificationSubset](SpecificationSubset.md)
* [BasicSubset](BasicSubset.md)
## Identifier and Mapping Information
### Administrative Metadata
**Rank:** 2
### Schema Source
* from schema: https://w3id.org/linkml/meta
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | sh:namespace |
| native | linkml:prefix_reference |
## LinkML Source
name: prefix_reference
description: The namespace to which a prefix expands to.
in_subset:
- SpecificationSubset
- BasicSubset
from_schema: https://w3id.org/linkml/meta
rank: 2
domain: prefix
slot_uri: sh:namespace
domain_of:
- prefix
range: uri
required: true