3. The apparatus of claim 1 wherein the processor is further configured to (1) receive source data relating to a subject, (2) compute a plurality of derived features based at least in part on the received source data, wherein the data processed by the processing operation comprises the source data and the derived features, and (3) generate an evaluation indicator indicative of whether a narrative story relating to the processed data that incorporates a story angle of the angle set data structure whose applicability conditions were satisfied by the processed data is to be generated.
3. The apparatus of claim 1 wherein the processor is further configured to (1) receive source data relating to a subject, (2) compute a plurality of derived features based at least in part on the received source data, wherein the data processed by the processing operation comprises the source data and the derived features, and (3) generate an evaluation indicator indicative of whether a narrative story relating to the processed data that incorporates a story angle of the angle set data structure whose applicability conditions were satisfied by the processed data is to be generated. 31. The apparatus of claim 3 wherein the processor is further configured to (1) automatically generate a narrative story about the subject using the angle set data structure in response to the evaluation indicator indicating that the narrative story is to be generated, wherein the story angle data of the angle set data structure further comprises, for each story angle, data representative of a trigger status for that story angle, the trigger status being indicative of whether that story angle is to be evaluated during the processing operation, and wherein the processing operation is configured to process the data against the story angle data in the angle data structure having a trigger status indicative of that story angle to be used by the processing operation.