Add unit test

unit test updates with question rues

Obviously this is not a full set o fdependency relations. I assume the word 'slavers' is throwing it off.  Try the same sentence with a more standard indirect object and see if you get sensible output.  if you do, change the example sentence.  If not, make sure the comments reflect that this type of question still doesn't work; it will require more revision of the sem-algs.