9. The method of claim 1 , wherein the updating comprises generating natural language text corresponding to the first fact, and adding the generated text to a textual representation of the free-form narration.
9. The method of claim 1 , wherein the updating comprises generating natural language text corresponding to the first fact, and adding the generated text to a textual representation of the free-form narration. 10. The method of claim 9 , wherein the updating further comprises: identifying a section heading in the textual representation of the free-form narration that corresponds to the first fact; and adding the generated text to a section of the textual representation of the free-form narration corresponding to the identified section heading.