In this task, you will be shown a correct English sentence. You need to generate an incorrect form of the input sentence.

Ex Input:
Tour guides are generally trained and certified by some supervising entities , therefore they are expected to be ready to provide the best possible guidance to their customers .

Ex Output:
Tour guides are generally trained and certified by some supervising entities , therefore they are expected to be ready to provide the best possible guide to their customers .

Ex Input:
I have a reason to study English .

Ex Output:
I have a reason that study English .

Ex Input:
A scene of violence can have an effect on them .

Ex Output:
Sceene of violence can affect on them .