In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

The UEFA Champions League ( abbreviated as UCL ) is an annual club football competition organised by the Union of European Football Associations ( UEFA ) and contested by top-division European clubs , deciding the best team in Europe .
The UEFA Champions League is a football competition between the best club teams in Europe .

In mathematical analysis , the maxima and minima ( the respective plurals of maximum and minimum ) of a function , known collectively as extrema ( the plural of extremum ) , are the largest and smallest value of the function , either within a given range ( the local or relative extrema ) or on the entire domain of a function ( the global or absolute extrema ) .
In mathematics , the maximum and minimum of a function are the largest and smallest value that the function takes at a given point .

The frenulum of prepuce of penis , often known simply as the frenulum , is an elastic band of tissue under the glans penis that connects the foreskin ( prepuce ) to the vernal mucosa , and helps contract the foreskin over the glans .
This is an elastic band of tissue under the glans penis that connects to the prepuce , or foreskin to the vernal mucosa .