Complex sentence: The line connects Freiburg with Donaueschingen, a distance of 25.4 kilometers (15.8mi) Over the course of the route the line rises from an altitude of 278 metres (912ft) in Freiburg to 885 metres (.54mi) in Hinterzarten.
Split into simpler sentences: The line connects Freiburg with Donaueschingen, a distance of 25.4 kilometers (15.8 miles). Over its entire course the line rises from an altitude of 278 metres (912 feet) in Freiburg to 885 metres (0.54 miles) in Hinterzarten.