1. A syntax-based document analysis system comprising: a memory comprising: a document type specific syntax definition for syntactically correct document structure, the syntax definition comprising a first structure category component for the document structure; a document type specific document structure identifier; an electronic document including a document structure instance; a first editable electronic spoken language glossary comprising permissible constituents associated with the first structure category component; executable instructions that define: a syntax-based document graphing module, the syntax-based document graphing module operative to: identify the document structure instance in the electronic document using the document type specific document structure identifier; select a structure category component from the document structure instance consistent with the document type specific syntax definition; generate an ontology hierarchy defining a hierarchy of document structure instance classes comprising a root class, child classes, class definition relationships between the document structure instance classes, and an hierarchy instance identifier that identifies the selected structure category component; and, output a graph that represents the ontology hierarchy; and, a processor operative to execute the executable instructions.