Instructions: 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.
Input: A gratuity ( also called a tip ) is a sum of money customarily given by a client or customer to certain service sector workers for the service they have performed , in addition to the basic price of the service .
Output:
A tip ( also called a gratuity ) is an amount of money given as gratitude to somebody who has provided a service .