Pentabarf-rdf is a project mainly written in Python, it's free.
Pentabarf XML to RDF converter
I wrote this script during the linked data workshop at Chaos Communication Camp 2011. It converts Pentabarf Schedule XML files to RDF using Python RDFLib. Where possible, i adhere to Dan Hagon's Fahrplan ontology. It doesn't contain all properties I use... I'll probably extend it later.
Download a schedule file and run:
./convert.py schedule.en.xml