The IMS Corpus Toolbox was developed at the University of Stuttgart
for just such a task. Information at
http://www.ims.uni-stuttgart.de/projekte/TC.html
Or by contacting:
Oliver Christ
Institute for Natural Language Processing
IMS/CL
Azenbergstr. 12
D 70174 Stuttgart
Germany
email: oli@ims.uni-stuttgart.de
Phone: +49-711-121-1374 (Oliver Christ)
Fax: +49-711-121-1366
Secr: +49-711-121-1363