We report on our effort to build a real system for integrating heterogeneous knowledge sources with different query answering
and reasoning capabilities. We are conducting this work in the context of CALO (Cognitive Assistant that Learns and Organizes),
a multidisciplinary project funded by DARPA to create cognitive software systems.
This material is based upon work supported by the Defense Advanced Research Projects Agency (DARPA) under Contract No. NBCHD030010.
Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not
necessarily reflect the views of DARPA, or the Department of Interior-National Business Center (DOI-NBC).