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.
Example: In early work , Rutherford discovered the concept of radioactive half-life, the radioactive element radon, and classified three types of radiations: alpha, beta and gamma radiation .

Example solution: Rutherford discovered the radioactive half-life, the chemical element radon, and the three parts of radiation which he named Alpha, Beta, and Gamma .

Example explanation: The output sentence is a simplified version of the input sentence.

Problem: Docklands Light Railway rolling stock is the passenger trains and service vehicles ( collectively known as ' rolling stock ' ) used on the Docklands Light Railway ( DLR ) , which serves the London Docklands area in the east of London .

Solution: Docklands Light Railway rolling stock means the passenger trains and service vehicles used on the Docklands Light Railway ( DLR ) in London , England .