T-Rex (Trainable Relation Extraction)
http://sourceforge.net/projects/t-rex/

T-Rex (Trainable Relation Extraction) is a highly configurable machine learning-based Information Extraction from Text framework, which includes tools for document classification, entity extraction and relation extraction. This has been added to Data Mining Resources Subject Tracer™ Information Blog. This has been added to the tools section of Research Resources Subject Tracer™ Information Blog.