Techniques are described for analyzing a submitted manuscript through the use of an entity/action relationship matrix determined for the manuscript. The entity/action relationship matrix may describe one or more entities, such as characters, locations, objects and so forth, which are identified in the manuscript using a natural language analysis such as a part-of-speech analysis. The entity/action relationship matrix may also describe actions or events associated with each of the entities, as determined using the natural language analysis. The entity/action relationship matrix may be employed to determine whether the manuscript complies with rules constraining the use of entities in the manuscript.