*** IMPORTANT NOTICE ***
The source code of the earliest version of the EARMARK Data Structure is now available at
http://www.github.com/essepuntato/EarmarkDataStructure
Even if the SourceForge repository is still active, it concerns old versions of the API and it is not maintained anymore.
*** SERVICE DESCRIPTION ***
Extremely Annotational RDF Markup (EARMARK) is an ontological approach to the specification of markup structures on text content. It allows not only documents with single hierarchies (as with XML) but also multiple overlapping hierarchies.