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.
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Question: Since the list began , every serving President of the United States has been a Man or Person of the Year at least once with the exceptions of Calvin Coolidge ( in office at time of the first issue ) , Herbert Hoover ( the subsequent U.S. President ) , and Gerald Ford .

Answer: Since the list began , every serving President of the United States has been a Person of the Year at least once , except for Calvin Coolidge , Herbert Hoover , and Gerald Ford .


Question: El Salvador ( ; -RSB- ) , officially the Republic of El Salvador ( , literally " Republic of The Savior " ) , is the smallest and the most densely populated country in Central America .

Answer: El Salvador is the smallest and most densely populated country in Central America .


Question: Terraforming of Mars is a hypothetical process of planetary engineering by which the surface and climate of Mars would be deliberately changed to make large areas of the environment hospitable to humans , thus making the colonization of Mars safer and sustainable .

Answer:
The terraforming of Mars is an idea that humans can change the climate and surface of Mars .