Get the Factz right!

How well does Powerset get its Factz right?

1. A cricketer's favourite query is Is Sachin God? Factz gets it right! :-). Of course, Sourav is not far behind ;-).


2. A traditional set theory query of Is Null set a Sub set gives a Power Set response! This definitely is a conspiracy by Powerset ;-)


3. Another query "Who killed Gandhi?" ...
   Factz from Wikipedia: we found that the following kill Gandhi
   madman, Nathuram Godse, Nathu Ram Godse and assassin
   
   Nathuram Godse He said, "No one should think that Gandhi was killed by a madman".
   
   
   The results also correctly include the assassinations of Rajiv Gandhi and Indira Gandhi.
   But Nathuram Godse did not intend "madman" to be listed as an assassin of Gandhiji!

I believe that in Semantic Retrieval it is important to handle "negation". It is non-trivial but very important as it modifies the semantics. "Negation" highlights the need to use NLP technologies in improving retrieval quality and "the intent" ...

Overall I'm impressed with the results of Powerset. It does get the Factz right ...