Complex sentence: The 2006-07 EDF Energy Cup is the 35th season of the English Rugby Union cup competition, the second season under the current Anglo-Welsh format and the first with EDF Energy as title sponsor.
Split into simpler sentences: The 2006-07 EDF Energy Cup marked the 35th season of the English Rugby Union cup competition. It was the second season under the new Anglo-Welsh format and the first with EDF Energy as title sponsor.