# Relation

This class provides possible relations which can be used to extend a discover or to extend a concept

## Item Index

### Methods

## Methods

## Properties

`BROAD_MATCH`

Object
More general relation between two concepts belonging to different Controlled Vocabularies. A formal definition of this relation can be found here

#### Sub-properties:

`BROADER`

Object
More general relation between two concepts belonging to the same Controlled Vocabulary. A formal definition of this relation can be found here

#### Sub-properties:

`CLOSE_MATCH`

Object
This relation indicates that two concepts belonging to different Controlled Vocabularies are similar and, in some applications,they can be used interchangeably. A formal definition of this relation can be found here

#### Sub-properties:

`EXACT_MATCH`

Object
This relation is used is used to link two concepts, indicating a high degree of confidence that these can be used interchangeably across a wide range of information retrieval applications. A formal definition of this relation can be found here

#### Sub-properties:

`NARROW_MATCH`

Object
More specific relation between two concepts belonging to different Controlled Vocabularies. A formal definition of this relation can be found here

#### Sub-properties:

`NARROWER`

Object
More specific relation between two concepts belonging to the same Controlled Vocabulary. A formal definition of this relation can be found here

#### Sub-properties:

`RELATED`

Object
This relation is used to assert an associative link between two concepts belonging to the same Controlled Vocabulary. A formal definition of this relation can be found here