Complex sentence: Please note that this list only includes those stations in East German territory that western trains passed through without stopping; there were other stations on both sides of the wall that were closed during the division because sections of track were not in use.
Split into simpler sentences: Please note that this list only includes those stations in East German territory that western trains passed through without stopping. There were other stations on both sides of the wall that were closed during the division because sections of track were not in use.