def update_pose_words
      self.pose_words.delete(Word.factory(pose_stale_words true))
      self.pose_words << Word.factory(pose_words_to_add)
    end
def update_pose_words
      self.pose_words.delete(Word.factory(pose_stale_words true))
      self.pose_words << Word.factory(pose_words_to_add)
    end
Helper method.
 Updates the search words with the text returned by search_strings.