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.

It was a major event in the history of public health , and the founding event of the science of epidemiology .
This has been perceived as a major event in the history of public health and regarded as the founding event of the science of epidemiology , having helped shape public health policies around the world .

Race length can be either a time or a number of laps .
Race length can be determined by a number of laps or total time , in which case the number of remaining laps is calculated as the race progresses .

Researcher Mark Changizi of Rensselaer Polytechnic Institute in New York thinks optical illusions are due to a ' neural lag ' .

Researcher Mark Changizi of Rensselaer Polytechnic Institute in New York has a more imaginative take on optical illusions , saying that they are due to a neural lag which most humans experience while awake .