Extract entity names from a document for similarity_search.
The second entity extraction has a different form and purpose than the first as we are looking for starting points of our search and paths to follow. We aim to find source nodes, but no target nodes or edges.
Returns: List of entity names / _ids.
| Name | Type | Description |
|---|---|---|
raw_document* | str | A single text document as a string. Typically prose. |
