The directory Docs inside Sentence contains, various text files;

Help: The main help file for Sentence.  Should be loaded when you click on 
      help.
      
Add:  The add list for Sentence.  This lists all of the things I am planning
      to add to Sentence if and when I get the time.  Please write and tell
      me if you have any other additions you would like to see, or a 
      suggestion already on the list which you are very keen on seeing.
      
History:  The history of Sentence, from version 0.5.  Just in case you are 
          bored and want something to read.
          
Log#######: The Cruncher's log file for the current version of Sentence.  
            This is in case you are a programmer, and want something to read.
            
!ReadMe:  This file!

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For simple help look at the interactive help (Acorn's !Help program)

Many things are already able to be done - look in the options!
(From edit window - click Options... )

The default teacher code is TEACHER