The Semantic Web implementation using native xml database as backend storage. A SPARQL javacompiler to XQuery using Jena. There are XQuery scripts for native xml database Sedna(http://modis.ispras.ru/sedna/).
A language designed for server-side WWW-based applications,
particularly database applications. It is based on Scheme, which makes the syntax extremely simple yet powerful. This implementation is a Java Servlet using the Kawa Scheme compiler.