| Interface | Description | 
|---|---|
| EntityLinker<T extends Span> | 
 EntityLinkers establish connections to external data to enrich extracted
 entities. 
 | 
| Class | Description | 
|---|---|
| BaseLink | 
 Stores a minimal tuple of information. 
 | 
| EntityLinkerFactory | 
 Generates an EntityLinker implementation via properties file configuration 
 | 
| EntityLinkerProperties | 
 Properties wrapper for the EntityLinker framework 
 | 
| LinkedSpan<T extends BaseLink> | 
 An "default" extended span that holds additional information about the Span 
 | 
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