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.

Ex Input:
As launch customer , and because of its early involvement before placing a formal order , Pan Am was able to influence the design and development of the 747 to an extent unmatched by a single airline before or since .

Ex Output:
Since Pan Am was the launch customer , Pan Am had a big say in the design and making of the 747 .


Ex Input:
Substance abuse , also known as drug abuse , is a patterned use of a drug in which the user consumes the substance in amounts or with methods which are harmful to themselves or others , and is a form of substance-related disorder .

Ex Output:
Substance abuse , or drug abuse , happens when a person uses a drug over and over again , in ways that hurt their health .


Ex Input:
Each related group of bivalves tends to have distinctive hinge teeth , and because of this , examining the arrangement of the hinge teeth in a bivalve shell is often essential for identification and classification .

Ex Output:

Each group of bivalves tends to have distinctive hinge teeth .


