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

Example input: The car's wheel are loose.
Example output: The car's wheel is loose.
Example explanation: The instance of are is replaced by the word is. This makes the sentence grammatically correct.
Q: So it is complex , looking after many new employee every year can be difficult . 
A:
So it is complex , looking after many new employees every year can be difficult . 