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.

[Q]: An organic light-emitting diode ( OLED or Organic LED ) , also known as an organic EL ( organic electroluminescent ) diode , is a light-emitting diode ( LED ) in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current .
[A]: Organic light-emitting diode ( OLED ) is a type of light-emitting diode ( LED ) .


[Q]: Uniformitarianism , also known as the Doctrine of Uniformity , is the assumption that the same natural laws and processes that operate in our present-day scientific observations have always operated in the universe in the past and apply everywhere in the universe .
[A]: Uniformitarianism is the idea that the same physical laws of today have always operated .


[Q]: The 2008 UEFA European Football Championship , commonly referred to as UEFA Euro 2008 or simply Euro 2008 , was the 13th UEFA European Football Championship , a quadrennial football tournament contested by European nations .
[A]:
The 2008 UEFA European Football Championship ( or the Euro 2008 ) was the 13th UEFA European Championships .