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: The Baluchistan States Union or Balochistan States Union ( BSU ) was an administrative division of Pakistan that existed between 3 October 1952 and 14 October 1955 in the southwestern part of West Pakistan .

Answer: The Baluchistan States Union existed between 3 October 1952 and 14 October 1955 in modern southwest Pakistan .

Question: 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 .

Answer: Calvin Mooers in his TRAC language is generally given credit with inventing " command substitution " .

Question: Immanuel Maurice Wallerstein ( ; September 28 , 1930 August 31 , 2019 ) was an American sociologist , economic historian and world-systems analyst , arguably best known for his development of the general approach in sociology which led to the emergence of his world-systems approach .

Answer:
Immanuel Maurice Wallerstein ( ; September 28 , 1930 August 31 , 2019 ) was an American sociologist , economic historian and world-systems analyst .