In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

[EX Q]: The zlib License is an open source software license .
[EX A]: 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 .

[EX Q]: During the American Civil War , the river , with few convenient fords and fewer bridges , provided a barrier and defensive line .
[EX A]: During the American Civil War , the river , with few convenient fords and fewer bridges , provided a barrier and defensive line behind which movements of troops could be accomplished with little fear of attack from the river-side flank .

[EX Q]: The Graphics Device Interface is an API of Microsoft Windows used for representing graphical objects and transmitting them to output devices , such as printers and monitors .
[EX A]:
The Graphics Device Interface ( GDI ) is a Microsoft Windows application programming interface and core operating system component responsible for representing graphical objects and transmitting them to output devices such as monitors and printers .

