You will be given a definition of a task first, then some input of the task.
In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

The 2008 UEFA European Football Championship ( or the Euro 2008 ) was the 13th UEFA European Championships .
Output:
The 2008 UEFA European Football Championship , commonly referred to as UEFA Euro 2008 or simply Euro 2008 , was the 13th UEFA European Football Championship , a quadrennial football tournament contested by European nations .