Teacher: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.
Teacher: Now, understand the problem? Solve this instance: A clockwork mechanism is often powered by a clockwork motor consisting of a mainspring , a spiral torsion spring of metal ribbon .
Student:
This has a mainspring , a spiral of metal ribbon .