# Class: Anonymous
_Abstract root class for all anonymous (non-named; lacking an identifier) expressions_
* __NOTE__: this is an abstract class and should not be instantiated directly
URI: [omoschema:Anonymous](https://w3id.org/oak/ontology-metadata/Anonymous)
```{mermaid}
classDiagram
class Anonymous
Anonymous <|-- AnonymousClassExpression
```
## Inheritance
* **Anonymous**
* [AnonymousClassExpression](AnonymousClassExpression.md)
## Slots
| Name | Cardinality and Range | Description | Inheritance |
| --- | --- | --- | --- |
## Identifier and Mapping Information
### Schema Source
* from schema: https://w3id.org/oak/ontology-metadata
## Mappings
| Mapping Type | Mapped Value |
| --- | --- |
| self | omoschema:Anonymous |
| native | omoschema:Anonymous |
## LinkML Source
### Direct
```yaml
name: Anonymous
description: Abstract root class for all anonymous (non-named; lacking an identifier)
expressions
from_schema: https://w3id.org/oak/ontology-metadata
abstract: true
```
### Induced
```yaml
name: Anonymous
description: Abstract root class for all anonymous (non-named; lacking an identifier)
expressions
from_schema: https://w3id.org/oak/ontology-metadata
abstract: true
```