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.

In countries with a presidential system , such as the United States , the Cabinet does not function as a collective legislative influence ; rather , their primary role is as an official advisory council to the head of government .
In other countries , such as the United States , the cabinet has limited power , and is an advisor to the Head of Government .

Calvin Mooers in his TRAC language is generally credited with inventing " command substitution " , the ability to embed commands in scripts that when interpreted insert a character string into the script .
Calvin Mooers in his TRAC language is generally given credit with inventing " command substitution " .

Then in 1860 the Chinese and British governments signed the Convention of Peking , a diplomatic agreement that subjects of the Chinese and British Empires would have reciprocal rights under their respective countries ' laws .
In 1860 the Chinese and British governments signed the Convention of Peking .