Input (grade 13): The Alps form a part of a Tertiary orogenic belt of mountain chains, called the Alpide belt, that stretches through southern Europe and Asia from the Atlantic all the way to the Himalayas.
Output (grade 7): The Alps are just a part of a larger orogenic belt of mountain chains, called the Alpide belt. It reaches through southern Europe and Asia from the Atlantic Ocean most of the way to the Himalayas.