!7

p-exp {
  S s = "I did the rgjiogjidres today";
  PTElement tree = ai_parseToTreeWithGuessing(s);
  L<S> unknown = ai_unknownWordsInSentence(s);
  printStruct(+unknown);
  assertTrue(nempty(unknown));
  
  ai_cullParseTree(tree);
  
  for (S word : unknown) {
    PTElement e = ai_scanParseTreeForWord(tree, word);
    print(e);
  }
}