I am trying to retreieve the raw xml from a document and think I should use the RETRIEVE command, right? What is the ID that I pass as the argument?
Here is what I have tried with the error:

> list 
Name      Resources  Size     Input Path  
----------------------------------------
greek     2          2942906              
latin     184        9942769              
semantic  785        257685               

3 database(s).
> list greek
Input Path                      Type  Content-Type     Size   
------------------------------------------------------------
PROSE~aristotle~Rhetoric1       xml   application/xml  99387  
PROSE~CONVERSATION~GreekPrimer  xml   application/xml  20260  

> open greek
Database 'greek' was opened in 2.9 ms.
> retrieve PROSE~aristotle~Rhetoric1
Resource "PROSE~aristotle~Rhetoric1" not found.