Had NotebookLM generate a mindmap from an uploaded passage: 'The layers of a forest'

 Earlier, I tried using NotebookLM to generate a mindmap from a URL (MagicSchool functionality). NotebookLM was not able to do that. 

Just now, I uploaded a short passage (DOCX) about the layers of forest to NotebookLM, and asked it to generate a mindmap. This time, it has done a great job. The resulting mindmap is expandable and collapsible, and can be downloaded as a static PNG file. 

Unlike my previous attempt with Gemini, the resulting mindmap has more levels (4, this time), and is made of word boxes. 

NOTE, THOUGH: 

- Presenting the Mindmap as an expandable one can only be done from one's LMNotebook. 

- This dynamic mindmap cannot be shared via a link.