phpSyntaxtree - a syntax tree generator for linguists. Draw syntax trees from labelled bracket notation phrases and include them into your assignment/homework.
The OWL API is a Java API and reference implmentation for creating, manipulating and serialising OWL Ontologies. The latest version of the API is focused towards OWL 2
G. Pullum, und B. Scholz. Logical Aspects of Computational Linguistics: 4th International Conference, Lacl 2001, Le Croisic, France, June 27-29, 2001, Proceedings, (2001)