18. The computer program product as recited in claim 17 , wherein the generalized content block data structure and the instantiated content block data structure further comprise: a specification of a plurality of models for a plurality of derived features for use when generating the narrative, wherein the specification of the derived features models is not expressed in programming language or in code directly executable by the computing device.
18. The computer program product as recited in claim 17 , wherein the generalized content block data structure and the instantiated content block data structure further comprise: a specification of a plurality of models for a plurality of derived features for use when generating the narrative, wherein the specification of the derived features models is not expressed in programming language or in code directly executable by the computing device. 19. The computer program product as recited in claim 18 , wherein the generalized content block data structure and the instantiated content block data structure further comprise: a specification of a focus for the narrative; a specification of angle selection/ranking criteria with respect to the angles; and a specification of an organizing principle for the narrative; wherein the specifications are not expressed in programming language or in code directly executable by the computing device.