Based on the premise "To the families involved in the Woburn tragedy, the real climax of this story isn't the downbeat ending of the book or the sleight of hand, let's call the Environmental Protection Agency, upbeat ending of the movie.", can we conclude the hypothesis "No families were involved in the Woburn tragedy. " is true (see options)?

Choose your answer from:
* yes
* it is not possible to tell
* no
no