This workshop will provide a forum to discuss
            difficult problems in representing complex knowledge needed
            to support deep reasoning, 
            question answering, explanation and justification systems. 
            The goals of the workshop are: (1) to create a comprehensive
            set of 
            knowledge representation (KR) challenge problems suitable
            for a recurring competition, and (2) begin to develop KR
            techniques to meet
            those challenges.  A set of difficult to represent sentences
            from a biology textbook are included as an initial
            set of KR challenges. 
            Cash prizes will be awarded for the most creative and
            comprehensive solutions to the selected challenges.
        The workshop will
            be a highly interactive event with brief presentations of
            problems and solutions followed by group discussion.  
            To submit a paper to the workshops, the participants should
            select a subset of the challenge sentences and present
            approaches
             for representing them along with an approach to use that
            representation in a problem solving task (question answering
            or decision support).
              Participants are free to add to the list of challenge
            sentences, for example, from other chapters of the textbook,
            or within the spirit of 
            their own projects and experience but should base their
            suggestions on concrete examples, if possible, from real
            applications.
          
        Please visit https://sites.google.com/site/dkrckcap2011/
          for more details.