1. A system comprising: at least one processor; and a memory device operatively connected to the at least one processor; wherein, responsive to execution of program instructions accessible to the at least one processor, the at least one processor is configured to: assemble at least one statistical summary of at least one hierarchical language data source; access at least one entity of interest selected from the at least one statistical summary; generate at least one target hierarchical language model based on the at least one entity of interest; and transform data from the at least one hierarchical language data source into at least one relational form by executing transformation artifacts generated based on a type of the at least one relational form.