4. The computer program product as recited in claim 3 , wherein each of the angle data structures are further associated with an importance value, and wherein the instructions are further configured to filter the determined candidate angle data structures based at least in part on the importance values associated with the determined candidate angle data structures.
4. The computer program product as recited in claim 3 , wherein each of the angle data structures are further associated with an importance value, and wherein the instructions are further configured to filter the determined candidate angle data structures based at least in part on the importance values associated with the determined candidate angle data structures. 10. The computer program product as recited in claim 4 , wherein the parameters specify one or more of a focus for the narrative story, a genre for the narrative story, a length of the narrative story, and a point of view for the narrative story.