1. A method, in a data processing system comprising a processor and a memory, for performing an analysis of content based on a flow of property between entities, comprising: performing, by the data processing system, analysis of a corpus of unstructured documents to identify one or more asset transfer flow relationships between entities; generating, by the data processing system, an asset transfer flow model defining a flow of an asset between entities based on the one or more asset transfer flow relationships between entities; inputting, by the data processing system, the asset transfer flow model into an analysis engine for use in analyzing content; analyzing, by the data processing system, the content using the asset transfer flow model to generate results of the analysis; and outputting, by the analysis engine, the results of the analysis based on the asset transfer flow model.