TASK DEFINITION: In this task, you need to remove all words of a given length in the sentence. The number of letters in a word determine its length, for example, the length of the word "apple" is 5.
PROBLEM: Sentence: 'business signs hanging over sidewalk in city area'. Remove all words of length '4' in the given sentence.

SOLUTION: business signs hanging sidewalk in

PROBLEM: Sentence: 'a number of plates with pizzas on the table'. Remove all words of length '1' in the given sentence.

SOLUTION: number of plates with pizzas on the table

PROBLEM: Sentence: 'a man sitting on a post talking on a cell phone'. Remove all words of length '4' in the given sentence.

SOLUTION:
a man sitting on a talking on a phone