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.

Sulfonamide drugs were the first antibacterials to be used systemically , and paved the way for the antibiotic revolution in medicine .
Sulfonamide drugs were the first antimicrobial drugs .

The zlib license has been approved by the Free Software Foundation ( FSF ) as a free software license , and by the Open Source Initiative ( OSI ) as an open source license .
The zlib License is an open source software license .

Space Shuttle " Endeavour " ( Orbiter Vehicle Designation : OV-105 ) is a retired orbiter from NASA 's Space Shuttle program and the fifth and final operational Shuttle built .
Space Shuttle Endeavour ( OV-105 ) is the fifth space shuttle run by NASA .