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:
International direct dialing ( IDD ) or international subscriber dialling ( ISD ) is placing an international telephone call that is dialed directly by a telephone subscriber , rather than by a telephone operator .

Ex Output:
International Direct Dialing ( IDD ) is an international telephone call dialed by the caller rather than going via an operator .

Ex Input:
The severity of nuclear accidents is generally classified using the International Nuclear Event Scale ( INES ) introduced by the International Atomic Energy Agency ( IAEA ) .

Ex Output:
It is called the International Nuclear Event Scale .

Ex Input:
In biology , any group of fish that stay together for social reasons are shoaling ( pronounced / ol / ) , and if the group is swimming in the same direction in a coordinated manner , they are schooling ( pronounced / skul / ) .

Ex Output:
Any group of fish that stays together for social reasons is said to be shoaling , and if the shoal is swimming in the same direction together , it is schooling .