| AreaTextChunksSource | A text chunks source that extracts the tagged chunks only. | 
| BoxText | A parto of text with connection to source boxes | 
| DefaultHint | A default no-op presentation hint. | 
| HintForceResolved | This hint forces the chunk source to accept only the chunk tags that are assigned 
 by a given resolver. | 
| HintInLine | This hint causes considering multiple subsequent lines to be treated as a single chunk source area. | 
| HintMultiBox | This hint has the same meaning as  HintWholeBox but it also considers multiple subsequent boxes. | 
| HintSeparator | This hint tries to improve the recall of the tag occurrence discovery by applying
 some regular separators. | 
| HintWholeBox | A hint that forces using the whole source box for the corresponding chunk even if only part
 of the box was detected as the chunk. | 
| ChunksCache | A cache of already created chunks depending on tags and hints. | 
| ChunksSource | An abstract base of a source of text chunks. | 
| PresentationBasedChunksSource | A chunk source that follows some presentation patterns in order to improve the chunk extraction. | 
| SourceBoxList | A list of source boxes with additional properties for creating the chunks. | 
| TaggedChunksSource | An area list source that creates text chunks by extracting tagged chunks from leaf areas. | 
| TextChunksProvider |  |