Complex sentence: It is a right tributary of the River Rhône, rising at Vioménil in the Vosges department and joining the Rhône in Lyon, just south of the Presqu'île.
Split into simpler sentences: It is a right tributary of the River Rhône. Rising at Vioménil in the Vosges department, it joins the Rhône in Lyon, just south of the Presqu'île.