Complex sentence: The Canal de Chelles (Or Canal Vaires in Neuilly-sur-Marne) is a channel parallel to the Marne River in Ile-de-France between Vaires-sur-Marne and Neuilly-sur-Marne.
Split into simpler sentences: The Canal de Chelles (Or Canal Vaires in Neuilly-sur-Marne) is a channel parallel to the Marne River. It connects the Marne River in Neuilly-sur-Marne to the Marne River in Vaires-sur-Marne.