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.

What was then needed was a tool that would cut DNA at specific sites , rather than at random sites along the length of the molecule , so that scientists could cut DNA molecules in a predictable and reproducible way .
They needed a tool to cut DNA at specific sites , rather than at random sites along the length of the molecule .

In law , a legal opinion is in certain jurisdictions a written explanation by a judge or group of judges that accompanies an order or ruling in a case , laying out the rationale and legal principles for the ruling .
In law , a legal opinion is usually a written explanation by a judge or group of judges that accompanies an order or ruling in a case .

Baseball writer Bill James , in " The New Bill James Historical Baseball Abstract " , ranked Robinson as the 32nd greatest player of all time strictly on the basis of his performance on the field , noting that he was one of the top players in the league throughout his career .

Baseball writer Bill James , in " The New Bill James Historical Baseball Abstract " , ranked Robinson as the 32nd greatest player of all time based on his performance on the field .