You will be given a definition of a task first, then some input of the task.
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.

The Boeing 767 is a passenger airplane manufactured by Boeing .
Output:
The Boeing 767 is a mid- to large-size , mid- to long-range , wide-body twin-engine jet airliner developed and manufactured by Boeing Commercial Airplanes .