TASK DEFINITION: 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.
PROBLEM: The Sikorsky S-76 is an American medium-size commercial utility helicopter , manufactured by the Sikorsky Aircraft Corporation .

SOLUTION: The Sikorsky S-76 is an american helicopter .

PROBLEM: When no absolute majority of the court can agree on the basis for deciding the case , the decision of the court may be contained in a number of concurring opinions , and the concurring opinion joined by the greatest number of judges is referred to as the plurality opinion .

SOLUTION: The concurring opinion joined by the greatest number of judges is called the plurality opinion .

PROBLEM: The Advertising Council , commonly known as the Ad Council , is an American nonprofit organization that produces , distributes , and promotes public service announcements on behalf of various sponsors , including nonprofit organizations , non-governmental organizations and agencies of the United States government .

SOLUTION:
The Advertising Council , mostly called the Ad Council , is an American non-profit organization that creates public service announcements on behalf of sponsors , including non-profit organizations and the United States government .